SQL Injection via MySQL Quote Method

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Summary

CVECVE-2026-48188
StatePUBLISHED
AssignerOTRS
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-06-01 04:16:22 UTC
Updated2026-06-01 04:16:22 UTC
DescriptionAn improper Input Validation vulnerability in OTRS or ((OTRS)) Community Edition database layer module allows an unauthenticated SQL injection which can lead to an authentication bypass. This issue only affects the system if the MySQL/MariaDB server is configured with the NO_BACKSLASH_ESCAPES SQL mode. This issue affects OTRS: * 7.0.X * 8.0.X * 2023.X * 2024.X * 2025.X * 2026.X before 2026.4.X * (OTRS)) Community Edition: 6.0.x Products based on the ((OTRS)) Community Edition also very likely to be affected

Risk And Classification

Primary CVSS: v3.1 9.1 CRITICAL from [email protected]

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

Problem Types: CWE-20 | CWE-20 CWE-20 Improper Input Validation

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary9.1CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
3.1CNACVSS9.1CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

CVSS v3.1 Breakdown

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

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

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA OTRS AG OTRS affected 7.0.x Not specified
CNA OTRS AG OTRS affected 8.0.x Not specified
CNA OTRS AG OTRS affected 2023.x Not specified
CNA OTRS AG OTRS affected 2024.x Not specified
CNA OTRS AG OTRS affected 2025.x Not specified
CNA OTRS AG OTRS affected 2026.x 2026.3.x patch Not specified
CNA OTRS AG OTRS Community Edition affected 6.x Not specified

References

ReferenceSourceLinkTags
otrs.com/release-notes/otrs-security-advisory-2026-02 [email protected] otrs.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: Special thanks to Daniel Triznafor reporting this vulnerability (en)

Additional Advisory Data

Solutions

CNA: Update to OTRS 2026.4.1. or later. Please note that there will be no OTRS 7 patches

Workarounds

CNA: Reconfigure MySQL/MariaDB servernot to use NO_BACKSLASH_ESCAPES SQL

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