Use-after-free in the Storage: IndexedDB component

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-2769
StatePUBLISHED
Assignermozilla
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-02-24 14:16:25 UTC
Updated2026-07-15 02:19:37 UTC
DescriptionUse-after-free in the Storage: IndexedDB component. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8.

Risk And Classification

Primary CVSS: v3.1 8.8 HIGH from ADP

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Problem Types: CWE-416 | CWE-416 CWE-416 Use After Free

VersionSourceTypeScoreSeverityVector
3.1ADPDECLARED8.8HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
3.1ADPCVSS7.5HIGHCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
3.1134c704f-9b21-4f2e-91b3-4a467353bcc0Secondary8.8HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
3.10b0ca135-0b70-47e7-9f44-1890c2a1c46cSecondary7.5HIGHCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Mozilla Firefox All All All All
Application Mozilla Firefox All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Mozilla Firefox unaffected 115.33 115.* rpm Not specified
CNA Mozilla Firefox unaffected 140.8 140.* rpm Not specified
CNA Mozilla Firefox unaffected 148 * rpm Not specified
CNA Mozilla Thunderbird unaffected 140.8 140.* rpm Not specified
CNA Mozilla Thunderbird unaffected 148 * rpm Not specified
ADP Red Hat Red Hat Enterprise Linux 10 unaffected 0:140.8.0-2.el10_1 * rpm Not specified
ADP Red Hat Red Hat Enterprise Linux 10 unaffected 0:140.8.0-2.el10_1 * rpm Not specified
ADP Red Hat Red Hat Enterprise Linux 10.0 Extended Update Support unaffected 0:140.8.0-2.el10_0 * rpm Not specified
ADP Red Hat Red Hat Enterprise Linux 10.0 Extended Update Support unaffected 0:140.8.0-2.el10_0 * rpm Not specified
ADP Red Hat Red Hat Enterprise Linux 7 Extended Lifecycle Support unaffected 0:140.8.0-2.el7_9 * rpm Not specified
ADP Red Hat Red Hat Enterprise Linux 8 unaffected 0:140.8.0-2.el8_10 * rpm Not specified
ADP Red Hat Red Hat Enterprise Linux 8 unaffected 0:140.8.0-1.el8_10 * rpm Not specified
ADP Red Hat Red Hat Enterprise Linux 8.2 Advanced Update Support unaffected 0:140.8.0-2.el8_2 * rpm Not specified
ADP Red Hat Red Hat Enterprise Linux 8.2 Advanced Update Support unaffected 0:140.8.0-1.el8_2 * rpm Not specified
ADP Red Hat Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support unaffected 0:140.8.0-2.el8_4 * rpm Not specified
ADP Red Hat Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support unaffected 0:140.8.0-2.el8_4 * rpm Not specified
ADP Red Hat Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On unaffected 0:140.8.0-2.el8_4 * rpm Not specified
ADP Red Hat Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On unaffected 0:140.8.0-2.el8_4 * rpm Not specified
ADP Red Hat Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support unaffected 0:140.8.0-2.el8_6 * rpm Not specified
ADP Red Hat Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support unaffected 0:140.8.0-1.el8_6 * rpm Not specified
ADP Red Hat Red Hat Enterprise Linux 8.6 Telecommunications Update Service unaffected 0:140.8.0-2.el8_6 * rpm Not specified
ADP Red Hat Red Hat Enterprise Linux 8.6 Telecommunications Update Service unaffected 0:140.8.0-1.el8_6 * rpm Not specified
ADP Red Hat Red Hat Enterprise Linux 8.6 Update Services For SAP Solutions unaffected 0:140.8.0-2.el8_6 * rpm Not specified
ADP Red Hat Red Hat Enterprise Linux 8.6 Update Services For SAP Solutions unaffected 0:140.8.0-1.el8_6 * rpm Not specified
ADP Red Hat Red Hat Enterprise Linux 8.8 Telecommunications Update Service unaffected 0:140.8.0-2.el8_8 * rpm Not specified
ADP Red Hat Red Hat Enterprise Linux 8.8 Telecommunications Update Service unaffected 0:140.8.0-1.el8_8 * rpm Not specified
ADP Red Hat Red Hat Enterprise Linux 8.8 Update Services For SAP Solutions unaffected 0:140.8.0-2.el8_8 * rpm Not specified
ADP Red Hat Red Hat Enterprise Linux 8.8 Update Services For SAP Solutions unaffected 0:140.8.0-1.el8_8 * rpm Not specified
ADP Red Hat Red Hat Enterprise Linux 9 unaffected 0:140.8.0-2.el9_7 * rpm Not specified
ADP Red Hat Red Hat Enterprise Linux 9 unaffected 0:140.8.0-1.el9_7 * rpm Not specified
ADP Red Hat Red Hat Enterprise Linux 9.0 Update Services For SAP Solutions unaffected 0:140.8.0-2.el9_0 * rpm Not specified
ADP Red Hat Red Hat Enterprise Linux 9.0 Update Services For SAP Solutions unaffected 0:140.8.0-1.el9_0 * rpm Not specified
ADP Red Hat Red Hat Enterprise Linux 9.2 Update Services For SAP Solutions unaffected 0:140.8.0-1.el9_2 * rpm Not specified
ADP Red Hat Red Hat Enterprise Linux 9.2 Update Services For SAP Solutions unaffected 0:140.8.0-2.el9_2 * rpm Not specified
ADP Red Hat Red Hat Enterprise Linux 9.4 Extended Update Support unaffected 0:140.8.0-2.el9_4 * rpm Not specified
ADP Red Hat Red Hat Enterprise Linux 9.4 Extended Update Support unaffected 0:140.8.0-1.el9_4 * rpm Not specified
ADP Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support unaffected 0:140.8.0-2.el9_6 * rpm Not specified
ADP Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support unaffected 0:140.8.0-1.el9_6 * rpm Not specified
ADP Red Hat Red Hat Enterprise Linux 10 Not specified Not specified
ADP Red Hat Red Hat Enterprise Linux 10 Not specified Not specified
ADP Red Hat Red Hat Enterprise Linux 6 Not specified Not specified
ADP Red Hat Red Hat Enterprise Linux 6 Not specified Not specified
ADP Red Hat Red Hat Enterprise Linux 7 Not specified Not specified

References

ReferenceSourceLinkTags
access.redhat.com/errata/RHSA-2026:3492 0b0ca135-0b70-47e7-9f44-1890c2a1c46c access.redhat.com
access.redhat.com/errata/RHSA-2026:3496 0b0ca135-0b70-47e7-9f44-1890c2a1c46c access.redhat.com
access.redhat.com/errata/RHSA-2026:3494 0b0ca135-0b70-47e7-9f44-1890c2a1c46c access.redhat.com
www.mozilla.org/security/advisories/mfsa2026-13 [email protected] www.mozilla.org Vendor Advisory
www.mozilla.org/security/advisories/mfsa2026-17 [email protected] www.mozilla.org Vendor Advisory
www.mozilla.org/security/advisories/mfsa2026-16 [email protected] www.mozilla.org Vendor Advisory
access.redhat.com/errata/RHSA-2026:3515 0b0ca135-0b70-47e7-9f44-1890c2a1c46c access.redhat.com
access.redhat.com/errata/RHSA-2026:3517 0b0ca135-0b70-47e7-9f44-1890c2a1c46c access.redhat.com
www.mozilla.org/security/advisories/mfsa2026-15 [email protected] www.mozilla.org Vendor Advisory
www.mozilla.org/security/advisories/mfsa2026-14 [email protected] www.mozilla.org Vendor Advisory
bugzilla.mozilla.org/show_bug.cgi [email protected] bugzilla.mozilla.org Permissions Required
access.redhat.com/errata/RHSA-2026:3979 0b0ca135-0b70-47e7-9f44-1890c2a1c46c access.redhat.com
access.redhat.com/errata/RHSA-2026:4260 0b0ca135-0b70-47e7-9f44-1890c2a1c46c access.redhat.com
access.redhat.com/errata/RHSA-2026:3981 0b0ca135-0b70-47e7-9f44-1890c2a1c46c access.redhat.com
access.redhat.com/errata/RHSA-2026:3983 0b0ca135-0b70-47e7-9f44-1890c2a1c46c access.redhat.com
access.redhat.com/errata/RHSA-2026:4022 0b0ca135-0b70-47e7-9f44-1890c2a1c46c access.redhat.com
access.redhat.com/errata/RHSA-2026:3338 0b0ca135-0b70-47e7-9f44-1890c2a1c46c access.redhat.com
access.redhat.com/errata/RHSA-2026:4432 0b0ca135-0b70-47e7-9f44-1890c2a1c46c access.redhat.com
access.redhat.com/errata/RHSA-2026:3339 0b0ca135-0b70-47e7-9f44-1890c2a1c46c access.redhat.com
access.redhat.com/errata/RHSA-2026:3361 0b0ca135-0b70-47e7-9f44-1890c2a1c46c access.redhat.com
access.redhat.com/errata/RHSA-2026:3978 0b0ca135-0b70-47e7-9f44-1890c2a1c46c access.redhat.com
access.redhat.com/errata/RHSA-2026:3976 0b0ca135-0b70-47e7-9f44-1890c2a1c46c access.redhat.com
security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-2769.json 0b0ca135-0b70-47e7-9f44-1890c2a1c46c security.access.redhat.com
access.redhat.com/errata/RHSA-2026:4152 0b0ca135-0b70-47e7-9f44-1890c2a1c46c access.redhat.com
access.redhat.com/errata/RHSA-2026:3984 0b0ca135-0b70-47e7-9f44-1890c2a1c46c access.redhat.com
access.redhat.com/errata/RHSA-2026:3982 0b0ca135-0b70-47e7-9f44-1890c2a1c46c access.redhat.com
access.redhat.com/errata/RHSA-2026:3980 0b0ca135-0b70-47e7-9f44-1890c2a1c46c access.redhat.com
access.redhat.com/security/cve/CVE-2026-2769 0b0ca135-0b70-47e7-9f44-1890c2a1c46c access.redhat.com
bugzilla.redhat.com/show_bug.cgi 0b0ca135-0b70-47e7-9f44-1890c2a1c46c bugzilla.redhat.com
access.redhat.com/errata/RHSA-2026:3495 0b0ca135-0b70-47e7-9f44-1890c2a1c46c access.redhat.com
access.redhat.com/errata/RHSA-2026:3497 0b0ca135-0b70-47e7-9f44-1890c2a1c46c access.redhat.com
access.redhat.com/errata/RHSA-2026:3491 0b0ca135-0b70-47e7-9f44-1890c2a1c46c access.redhat.com
access.redhat.com/errata/RHSA-2026:3493 0b0ca135-0b70-47e7-9f44-1890c2a1c46c access.redhat.com
access.redhat.com/errata/RHSA-2026:3516 0b0ca135-0b70-47e7-9f44-1890c2a1c46c 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: Evyatar Ben Asher, Keane Lucas, Nicholas Carlini, Newton Cheng, Daniel Freeman, Alex Gaynor, and Joel Weinberger using Claude from Anthropic (en)

Additional Advisory Data

SourceTimeEvent
ADP2026-02-24T14:02:40.379ZReported to Red Hat.
ADP2026-02-24T13:33:06.912ZMade public.

Solutions

ADP: RHSA-2026:3984: Red Hat Enterprise Linux Server (v. 7 ELS)

ADP: RHSA-2026:3976: Red Hat Enterprise Linux AppStream EUS (v. 10.0)

ADP: RHSA-2026:4260: Red Hat Enterprise Linux AppStream EUS (v. 10.0)

ADP: RHSA-2026:3361: Red Hat Enterprise Linux AppStream (v. 10)

ADP: RHSA-2026:3517: Red Hat Enterprise Linux AppStream (v. 10)

ADP: RHSA-2026:3338: Red Hat Enterprise Linux AppStream (v. 8)

ADP: RHSA-2026:3515: Red Hat Enterprise Linux AppStream (v. 8)

ADP: RHSA-2026:3492: Red Hat Enterprise Linux AppStream AUS (v. 8.2)

ADP: RHSA-2026:4432: Red Hat Enterprise Linux AppStream AUS (v. 8.2)

ADP: RHSA-2026:3491: Red Hat Enterprise Linux AppStream AUS (v.8.4), Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.4)

ADP: RHSA-2026:3980: Red Hat Enterprise Linux AppStream AUS (v.8.4), Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.4)

ADP: RHSA-2026:3495: Red Hat Enterprise Linux AppStream AUS (v.8.6), Red Hat Enterprise Linux AppStream E4S (v.8.6), Red Hat Enterprise Linux AppStream TUS (v.8.6)

ADP: RHSA-2026:3979: Red Hat Enterprise Linux AppStream AUS (v.8.6), Red Hat Enterprise Linux AppStream E4S (v.8.6), Red Hat Enterprise Linux AppStream TUS (v.8.6)

ADP: RHSA-2026:3494: Red Hat Enterprise Linux AppStream E4S (v.8.8), Red Hat Enterprise Linux AppStream TUS (v.8.8)

ADP: RHSA-2026:4022: Red Hat Enterprise Linux AppStream E4S (v.8.8), Red Hat Enterprise Linux AppStream TUS (v.8.8)

ADP: RHSA-2026:3493: Red Hat Enterprise Linux AppStream E4S (v.9.0)

ADP: RHSA-2026:3983: Red Hat Enterprise Linux AppStream E4S (v.9.0)

ADP: RHSA-2026:4152: Red Hat Enterprise Linux AppStream E4S (v.9.2)

ADP: RHSA-2026:3978: Red Hat Enterprise Linux AppStream E4S (v.9.2)

ADP: RHSA-2026:3496: Red Hat Enterprise Linux AppStream EUS (v.9.4)

ADP: RHSA-2026:3981: Red Hat Enterprise Linux AppStream EUS (v.9.4)

ADP: RHSA-2026:3497: Red Hat Enterprise Linux AppStream EUS (v.9.6)

ADP: RHSA-2026:3982: Red Hat Enterprise Linux AppStream EUS (v.9.6)

ADP: RHSA-2026:3339: Red Hat Enterprise Linux AppStream (v. 9)

ADP: RHSA-2026:3516: Red Hat Enterprise Linux AppStream (v. 9)

© CVE.report 2026

Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. It is the responsibility of user to evaluate the accuracy, completeness or usefulness of any information, opinion, advice or other content. EACH USER WILL BE SOLELY RESPONSIBLE FOR ANY consequences of his or her direct or indirect use of this web site. ALL WARRANTIES OF ANY KIND ARE EXPRESSLY DISCLAIMED. This site will NOT BE LIABLE FOR ANY DIRECT, INDIRECT or any other kind of loss.

CVE, CWE, and OVAL are registred trademarks of The MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. This site includes MITRE data granted under the following license.

Free CVE JSON API cve.report/api

CVE.report and Source URL Uptime Status status.cve.report