Gdbusserver: glib2: gdbusserver pre-authentication dos via unbounded sasl line buffering
Summary
| CVE | CVE-2026-15588 |
|---|---|
| State | PUBLISHED |
| Assigner | redhat |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2026-07-20 12:17:55 UTC |
| Updated | 2026-10-30 08:16:55 UTC |
| Description | A denial-of-service and resource exhaustion vulnerability exists within the `GDBus` component of GLib. The `gdbusauth` authentication mechanism fails to enforce proper length limitations on data lines read from a client. An unauthenticated local or remote attacker can exploit this lack of input validation by sending excessively long streams of data, causing the application to consume massive amounts of system memory and CPU, potentially leading to a crash or system hang. |
Risk And Classification
Primary CVSS: v3.1 5.3 MEDIUM from [email protected]
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
EPSS: 0.004790000 probability, percentile 0.413080000 (date 2026-10-29)
Problem Types: CWE-770 | CWE-770 Allocation of Resources Without Limits or Throttling
| Version | Source | Type | Score | Severity | Vector |
|---|---|---|---|---|---|
| 3.1 | [email protected] | Secondary | 5.3 | MEDIUM | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L |
| 3.1 | CNA | CVSS | 5.3 | MEDIUM | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L |
CVSS v3.1 Breakdown
Attack Vector
LocalAttack Complexity
LowPrivileges Required
LowUser Interaction
NoneScope
UnchangedConfidentiality
LowIntegrity
LowAvailability
LowCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| CNA | Red Hat | Red Hat Enterprise Linux 10 | unaffected 0:2.80.4-12.el10_2.21 * rpm | Not specified |
| CNA | Red Hat | Red Hat Enterprise Linux 10.0 Extended Update Support | unaffected 0:2.80.4-4.el10_0.17 * rpm | Not specified |
| CNA | Red Hat | Red Hat Enterprise Linux 7 Extended Lifecycle Support | unaffected 0:2.56.1-13.el7_9.1 * rpm | Not specified |
| CNA | Red Hat | Red Hat Enterprise Linux 8 | unaffected 0:2.56.4-177.el8_10 * rpm | Not specified |
| CNA | Red Hat | Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support | unaffected 0:2.56.4-10.el8_4.7 * rpm | Not specified |
| CNA | Red Hat | Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On | unaffected 0:2.56.4-10.el8_4.7 * rpm | Not specified |
| CNA | Red Hat | Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support | unaffected 0:2.56.4-158.el8_6.7 * rpm | Not specified |
| CNA | Red Hat | Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On | unaffected 0:2.56.4-158.el8_6.7 * rpm | Not specified |
| CNA | Red Hat | Red Hat Enterprise Linux 8.8 Telecommunications Update Service | unaffected 0:2.56.4-165.el8_8.2 * rpm | Not specified |
| CNA | Red Hat | Red Hat Enterprise Linux 8.8 Update Services For SAP Solutions | unaffected 0:2.56.4-165.el8_8.2 * rpm | Not specified |
| CNA | Red Hat | Red Hat Enterprise Linux 9 | unaffected 0:2.68.4-19.el9_8.9 * rpm | Not specified |
| CNA | Red Hat | Red Hat Enterprise Linux 9 | unaffected 0:2.68.4-19.el9_8.9 * rpm | Not specified |
| CNA | Red Hat | Red Hat Enterprise Linux 9.2 Update Services For SAP Solutions | unaffected 0:2.68.4-7.el9_2.7 * rpm | Not specified |
| CNA | Red Hat | Red Hat Enterprise Linux 9.4 Update Services For SAP Solutions | unaffected 0:2.68.4-14.el9_4.8 * rpm | Not specified |
| CNA | Red Hat | Red Hat Enterprise Linux 9.6 Extended Update Support | unaffected 0:2.68.4-16.el9_6.7 * rpm | Not specified |
| CNA | Red Hat | Cert Manager Support For Red Hat OpenShift Release 1.17 | unaffected 1791371080 * rpm | Not specified |
| CNA | Red Hat | Cert Manager Support For Red Hat OpenShift Release 1.17 | unaffected 1791371069 * rpm | Not specified |
| CNA | Red Hat | Cert Manager Support For Red Hat OpenShift Release 1.17 | unaffected 1791788287 * rpm | Not specified |
| CNA | Red Hat | Cert Manager Support For Red Hat OpenShift Release 1.17 | unaffected 1791378395 * rpm | Not specified |
| CNA | Red Hat | Cert Manager Support For Red Hat OpenShift Release 1.17 | unaffected 1791970484 * rpm | Not specified |
| CNA | Red Hat | Cert Manager Support For Red Hat OpenShift Release 1.18 | unaffected 1791459707 * rpm | Not specified |
| CNA | Red Hat | Cert Manager Support For Red Hat OpenShift Release 1.18 | unaffected 1791459711 * rpm | Not specified |
| CNA | Red Hat | Cert Manager Support For Red Hat OpenShift Release 1.18 | unaffected 1791459759 * rpm | Not specified |
| CNA | Red Hat | Cert Manager Support For Red Hat OpenShift Release 1.18 | unaffected 1789029076 * rpm | Not specified |
| CNA | Red Hat | Cert Manager Support For Red Hat OpenShift Release 1.18 | unaffected 1791966259 * rpm | Not specified |
| CNA | Red Hat | Cert Manager Support For Red Hat OpenShift Release 1.19 | unaffected 1788348522 * rpm | Not specified |
| CNA | Red Hat | Cert Manager Support For Red Hat OpenShift Release 1.19 | unaffected 1788348571 * rpm | Not specified |
| CNA | Red Hat | Cert Manager Support For Red Hat OpenShift Release 1.19 | unaffected 1788348571 * rpm | Not specified |
| CNA | Red Hat | Cert Manager Support For Red Hat OpenShift Release 1.19 | unaffected 1788348594 * rpm | Not specified |
| CNA | Red Hat | Cert Manager Support For Red Hat OpenShift Release 1.20 | unaffected 1790223279 * rpm | Not specified |
| CNA | Red Hat | Cert Manager Support For Red Hat OpenShift Release 1.20 | unaffected 1790223719 * rpm | Not specified |
| CNA | Red Hat | Cert Manager Support For Red Hat OpenShift Release 1.20 | unaffected 1790272426 * rpm | Not specified |
| CNA | Red Hat | Cert Manager Support For Red Hat OpenShift Release 1.20 | unaffected 1790589998 * rpm | Not specified |
| CNA | Red Hat | Cert Manager Support For Red Hat OpenShift Release 1.20 | unaffected 1790589912 * rpm | Not specified |
| CNA | Red Hat | Cert Manager Support For Red Hat OpenShift Release 1.20 | unaffected 1790589914 * rpm | Not specified |
| CNA | Red Hat | Cert Manager Support For Red Hat OpenShift Release 1.20 | unaffected 1790589855 * rpm | Not specified |
| CNA | Red Hat | Cert Manager Support For Red Hat OpenShift Release 1.20 | unaffected 1790598593 * rpm | Not specified |
| CNA | Red Hat | Red Hat AI Inference Server 3.2 | unaffected 1790621714 * rpm | Not specified |
| CNA | Red Hat | Red Hat AI Inference Server 3.2 | unaffected 1790621718 * rpm | Not specified |
| CNA | Red Hat | Red Hat AI Inference Server 3.2 | unaffected 1790621713 * rpm | Not specified |
| CNA | Red Hat | Red Hat AI Inference Server 3.5 | unaffected 1791425869 * rpm | Not specified |
| CNA | Red Hat | Red Hat AI Inference Server 3.5 | unaffected 1791427182 * rpm | Not specified |
| CNA | Red Hat | Red Hat AI Inference Server 3.5 | unaffected 1791803821 * rpm | Not specified |
| CNA | Red Hat | Red Hat AI Inference Server 3.5 | unaffected 1791473631 * rpm | Not specified |
| CNA | Red Hat | Red Hat AI Inference Server 3.5 | unaffected 1791818357 * rpm | Not specified |
| CNA | Red Hat | Red Hat AI Inference Server 3.5 | unaffected 1791473614 * rpm | Not specified |
| CNA | Red Hat | Red Hat Discovery 2 | unaffected 1788205779 * rpm | Not specified |
| CNA | Red Hat | Red Hat Discovery 2 | unaffected 1788206196 * rpm | Not specified |
| CNA | Red Hat | Red Hat Enterprise Linux AI 3.5 | unaffected 1793206758 * rpm | Not specified |
| CNA | Red Hat | Red Hat Enterprise Linux AI 3.5 | unaffected 1793194817 * rpm | Not specified |
| CNA | Red Hat | Red Hat Enterprise Linux AI 3.5 | unaffected 1793194815 * rpm | Not specified |
| CNA | Red Hat | Red Hat Enterprise Linux AI 3.5 | unaffected 1793194834 * rpm | Not specified |
| CNA | Red Hat | Red Hat Enterprise Linux AI 3.5 | unaffected 1793135861 * rpm | Not specified |
| CNA | Red Hat | Red Hat Enterprise Linux AI 3.5 | unaffected 1793194815 * rpm | Not specified |
| CNA | Red Hat | Red Hat Enterprise Linux AI 3.5 | unaffected 1793135863 * rpm | Not specified |
| CNA | Red Hat | Red Hat Hardened Images | unaffected 2.89.1-1.1.hum1 * rpm | Not specified |
| CNA | Red Hat | Red Hat Hardened Images | unaffected 2.89.1-1.2.hum1 * rpm | Not specified |
| CNA | Red Hat | Red Hat Hardened Images | unaffected 2.89.2-2.hum1 * rpm | Not specified |
| CNA | Red Hat | Red Hat OpenShift AI 3.0 | unaffected 1790276886 * rpm | Not specified |
| CNA | Red Hat | Red Hat OpenShift AI 3.0 | unaffected 1790276884 * rpm | Not specified |
| CNA | Red Hat | Red Hat OpenShift AI 3.0 | unaffected 1790277045 * rpm | Not specified |
| CNA | Red Hat | Red Hat OpenShift AI 3.0 | unaffected 1790276889 * rpm | Not specified |
| CNA | Red Hat | Red Hat OpenShift AI 3.0 | unaffected 1790276974 * rpm | Not specified |
| CNA | Red Hat | Red Hat OpenShift AI 3.2 | unaffected 1790703497 * rpm | Not specified |
| CNA | Red Hat | Red Hat OpenShift AI 3.2 | unaffected 1790703506 * rpm | Not specified |
| CNA | Red Hat | Red Hat OpenShift AI 3.2 | unaffected 1790703590 * rpm | Not specified |
| CNA | Red Hat | Red Hat OpenShift AI 3.2 | unaffected 1790703568 * rpm | Not specified |
| CNA | Red Hat | Red Hat OpenShift AI 3.2 | unaffected 1790703586 * rpm | Not specified |
| CNA | Red Hat | Red Hat OpenShift AI 3.2 | unaffected 1790703494 * rpm | Not specified |
| CNA | Red Hat | Red Hat OpenShift AI 3.4 | unaffected 1790703542 * rpm | Not specified |
| CNA | Red Hat | Red Hat OpenShift AI 3.4 | unaffected 1790703539 * rpm | Not specified |
| CNA | Red Hat | Red Hat OpenShift AI 3.4 | unaffected 1790703553 * rpm | Not specified |
| CNA | Red Hat | Red Hat OpenShift AI 3.4 | unaffected 1790703631 * rpm | Not specified |
| CNA | Red Hat | Red Hat OpenShift AI 3.4 | unaffected 1790703597 * rpm | Not specified |
| CNA | Red Hat | Red Hat OpenShift AI 3.4 | unaffected 1790703641 * rpm | Not specified |
| CNA | Red Hat | Red Hat OpenShift AI 3.4 | unaffected 1790703630 * rpm | Not specified |
| CNA | Red Hat | Red Hat OpenShift AI 3.4 | unaffected 1790703541 * rpm | Not specified |
| CNA | Red Hat | Red Hat OpenShift AI 3.4 | unaffected 1790703545 * rpm | Not specified |
| CNA | Red Hat | Red Hat OpenShift AI 3.4 | unaffected 1791231926 * rpm | Not specified |
| CNA | Red Hat | Red Hat OpenShift AI 3.4 | unaffected 1791232048 * rpm | Not specified |
| CNA | Red Hat | Red Hat OpenShift AI 3.5 | unaffected 1790703552 * rpm | Not specified |
| CNA | Red Hat | Red Hat OpenShift AI 3.5 | unaffected 1790703656 * rpm | Not specified |
| CNA | Red Hat | Red Hat OpenShift AI 3.5 | unaffected 1790703557 * rpm | Not specified |
| CNA | Red Hat | Red Hat OpenShift AI 3.5 | unaffected 1790703707 * rpm | Not specified |
| CNA | Red Hat | Red Hat OpenShift AI 3.5 | unaffected 1790703645 * rpm | Not specified |
| CNA | Red Hat | Red Hat OpenShift AI 3.5 | unaffected 1790703554 * rpm | Not specified |
| CNA | Red Hat | Red Hat OpenShift AI 3.5 | unaffected 1790703554 * rpm | Not specified |
| CNA | Red Hat | Red Hat OpenShift AI 3.5 | unaffected 1790703630 * rpm | Not specified |
| CNA | Red Hat | Red Hat OpenShift AI 3.5 | unaffected 1790703706 * rpm | Not specified |
| CNA | Red Hat | Red Hat Update Infrastructure 5 | unaffected 1787241211 * rpm | Not specified |
| CNA | Red Hat | Red Hat Update Infrastructure 5 | unaffected 1787135742 * rpm | Not specified |
| CNA | Red Hat | Red Hat Update Infrastructure 5 | unaffected 1787241260 * rpm | Not specified |
| CNA | Red Hat | Red Hat Update Infrastructure 5 | unaffected 1788880445 * rpm | Not specified |
| CNA | Red Hat | Red Hat Update Infrastructure 5 | unaffected 1788880464 * rpm | Not specified |
| CNA | Red Hat | Red Hat Update Infrastructure 5 | unaffected 1788880456 * rpm | Not specified |
| CNA | Red Hat | Red Hat Update Infrastructure 5 | unaffected 1788765051 * rpm | Not specified |
| CNA | Red Hat | Red Hat Update Infrastructure 5 | unaffected 1788880581 * rpm | Not specified |
| CNA | Red Hat | Red Hat Enterprise Linux 10 | Not specified | Not specified |
| CNA | Red Hat | Red Hat Enterprise Linux 6 | Not specified | Not specified |
| CNA | Red Hat | Red Hat Enterprise Linux 8 | Not specified | Not specified |
| CNA | Red Hat | Red Hat Enterprise Linux 9 | Not specified | Not specified |
| CNA | Red Hat | Red Hat OpenShift Container Platform 4 | Not specified | Not specified |
| CNA | Red Hat | Red Hat OpenShift Container Platform 4 | Not specified | Not specified |
| CNA | Red Hat | Red Hat OpenShift Container Platform 5 | Not specified | Not specified |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| access.redhat.com/errata/RHSA-2026:73859 | [email protected] | access.redhat.com | |
| access.redhat.com/errata/RHSA-2026:82061 | [email protected] | access.redhat.com | |
| access.redhat.com/errata/RHSA-2026:72399 | [email protected] | access.redhat.com | |
| access.redhat.com/errata/RHSA-2026:74677 | [email protected] | access.redhat.com | |
| access.redhat.com/errata/RHSA-2026:40485 | [email protected] | access.redhat.com | |
| access.redhat.com/errata/RHSA-2026:82857 | [email protected] | access.redhat.com | |
| access.redhat.com/errata/RHSA-2026:72395 | [email protected] | access.redhat.com | |
| access.redhat.com/errata/RHSA-2026:75657 | [email protected] | access.redhat.com | |
| access.redhat.com/errata/RHSA-2026:82354 | [email protected] | access.redhat.com | |
| access.redhat.com/errata/RHSA-2026:72394 | [email protected] | access.redhat.com | |
| access.redhat.com/errata/RHSA-2026:72470 | [email protected] | access.redhat.com | |
| access.redhat.com/errata/RHSA-2026:39985 | [email protected] | access.redhat.com | |
| access.redhat.com/errata/RHSA-2026:61766 | [email protected] | access.redhat.com | |
| access.redhat.com/errata/RHSA-2026:82059 | [email protected] | access.redhat.com | |
| access.redhat.com/errata/RHSA-2026:74683 | [email protected] | access.redhat.com | |
| access.redhat.com/errata/RHSA-2026:74679 | [email protected] | access.redhat.com | |
| access.redhat.com/errata/RHSA-2026:75655 | [email protected] | access.redhat.com | |
| access.redhat.com/errata/RHSA-2026:74771 | [email protected] | access.redhat.com | |
| access.redhat.com/errata/RHSA-2026:82415 | [email protected] | access.redhat.com | |
| access.redhat.com/errata/RHSA-2026:75660 | [email protected] | access.redhat.com | |
| access.redhat.com/errata/RHSA-2026:65763 | [email protected] | access.redhat.com | |
| access.redhat.com/errata/RHSA-2026:63140 | [email protected] | access.redhat.com | |
| access.redhat.com/errata/RHSA-2026:75659 | [email protected] | access.redhat.com | |
| access.redhat.com/errata/RHSA-2026:82304 | [email protected] | access.redhat.com | |
| access.redhat.com/errata/RHSA-2026:57015 | [email protected] | access.redhat.com | |
| access.redhat.com/errata/RHSA-2026:74681 | [email protected] | access.redhat.com | |
| access.redhat.com/errata/RHSA-2026:65762 | [email protected] | access.redhat.com | |
| access.redhat.com/errata/RHSA-2026:75654 | [email protected] | access.redhat.com | |
| access.redhat.com/errata/RHSA-2026:74678 | [email protected] | access.redhat.com | |
| bugzilla.redhat.com/show_bug.cgi | [email protected] | bugzilla.redhat.com | |
| access.redhat.com/errata/RHSA-2026:58981 | [email protected] | access.redhat.com | |
| access.redhat.com/errata/RHSA-2026:75658 | [email protected] | access.redhat.com | |
| access.redhat.com/errata/RHSA-2026:74674 | [email protected] | access.redhat.com | |
| access.redhat.com/errata/RHSA-2026:74460 | [email protected] | access.redhat.com | |
| access.redhat.com/errata/RHSA-2026:74687 | [email protected] | access.redhat.com | |
| access.redhat.com/errata/RHSA-2026:73929 | [email protected] | access.redhat.com | |
| access.redhat.com/errata/RHSA-2026:42329 | [email protected] | access.redhat.com | |
| access.redhat.com/errata/RHSA-2026:75652 | [email protected] | access.redhat.com | |
| access.redhat.com/errata/RHSA-2026:65773 | [email protected] | access.redhat.com | |
| access.redhat.com/errata/RHSA-2026:82336 | [email protected] | access.redhat.com | |
| access.redhat.com/errata/RHSA-2026:82372 | [email protected] | access.redhat.com | |
| access.redhat.com/errata/RHSA-2026:65768 | [email protected] | access.redhat.com | |
| access.redhat.com/errata/RHSA-2026:74459 | [email protected] | access.redhat.com | |
| access.redhat.com/errata/RHSA-2026:66018 | [email protected] | access.redhat.com | |
| access.redhat.com/errata/RHSA-2026:73961 | [email protected] | access.redhat.com | |
| access.redhat.com/errata/RHSA-2026:82347 | [email protected] | access.redhat.com | |
| access.redhat.com/errata/RHSA-2026:82368 | [email protected] | access.redhat.com | |
| access.redhat.com/errata/RHSA-2026:80771 | [email protected] | access.redhat.com | |
| access.redhat.com/errata/RHSA-2026:73959 | [email protected] | access.redhat.com | |
| access.redhat.com/errata/RHSA-2026:72475 | [email protected] | access.redhat.com | |
| access.redhat.com/errata/RHSA-2026:74461 | [email protected] | access.redhat.com | |
| gitlab.gnome.org/GNOME/glib/-/issues/3985 | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | gitlab.gnome.org | |
| access.redhat.com/errata/RHSA-2026:73960 | [email protected] | access.redhat.com | |
| access.redhat.com/errata/RHSA-2026:74458 | [email protected] | access.redhat.com | |
| access.redhat.com/errata/RHSA-2026:65769 | [email protected] | access.redhat.com | |
| access.redhat.com/errata/RHSA-2026:82888 | [email protected] | access.redhat.com | |
| access.redhat.com/errata/RHSA-2026:63138 | [email protected] | access.redhat.com | |
| access.redhat.com/errata/RHSA-2026:82066 | [email protected] | access.redhat.com | |
| access.redhat.com/errata/RHSA-2026:80769 | [email protected] | access.redhat.com | |
| access.redhat.com/errata/RHSA-2026:73930 | [email protected] | access.redhat.com | |
| access.redhat.com/errata/RHSA-2026:76042 | [email protected] | access.redhat.com | |
| access.redhat.com/security/cve/CVE-2026-15588 | [email protected] | access.redhat.com | |
| access.redhat.com/errata/RHSA-2026:65771 | [email protected] | access.redhat.com | |
| access.redhat.com/errata/RHSA-2026:73909 | [email protected] | access.redhat.com | |
| access.redhat.com/errata/RHSA-2026:74685 | [email protected] | access.redhat.com | |
| access.redhat.com/errata/RHSA-2026:74462 | [email protected] | access.redhat.com | |
| access.redhat.com/errata/RHSA-2026:72476 | [email protected] | access.redhat.com | |
| access.redhat.com/errata/RHSA-2026:82371 | [email protected] | access.redhat.com | |
| access.redhat.com/errata/RHSA-2026:61783 | [email protected] | access.redhat.com | |
| access.redhat.com/errata/RHSA-2026:74688 | [email protected] | access.redhat.com | |
| access.redhat.com/errata/RHSA-2026:73962 | [email protected] | access.redhat.com | |
| access.redhat.com/errata/RHSA-2026:82322 | [email protected] | access.redhat.com | |
| access.redhat.com/errata/RHSA-2026:92452 | [email protected] | access.redhat.com | |
| access.redhat.com/errata/RHSA-2026:72502 | [email protected] | access.redhat.com | |
| access.redhat.com/errata/RHSA-2026:74463 | [email protected] | access.redhat.com | |
| access.redhat.com/errata/RHSA-2026:65767 | [email protected] | access.redhat.com | |
| access.redhat.com/errata/RHSA-2026:92449 | [email protected] | access.redhat.com | |
| access.redhat.com/errata/RHSA-2026:55440 | [email protected] | access.redhat.com | |
| access.redhat.com/errata/RHSA-2026:65770 | [email protected] | access.redhat.com | |
| access.redhat.com/errata/RHSA-2026:63135 | [email protected] | access.redhat.com | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
Vendor Comments And Credit
Discovery Credit
CNA: Red Hat would like to thank Gitee Codepecker Lab for reporting this issue. (en)
Additional Advisory Data
| Source | Time | Event |
|---|---|---|
| CNA | 2026-07-13T00:00:00.000Z | Reported to Red Hat. |
| CNA | 2026-07-12T10:10:00.000Z | Made public. |
Workarounds
CNA: Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.
There are currently no legacy QID mappings associated with this CVE.