CVE-2026-6042: Inefficient Algorithmic Complexity in musl libc
A security flaw has been discovered in musl libc up to 1.2.6. Affected is the function iconv of the file src/locale/iconv.c of the component GB18030 4-byte Decoder. Performing a manipulation results in inefficient algorithmic complexity. The attack must be initiated from a local position. To fix this issue, it is recommended to deploy a patch.
AI Analysis
Technical Summary
This vulnerability in musl libc's iconv function (src/locale/iconv.c) affects the GB18030 4-byte Decoder component and results in inefficient algorithmic complexity under certain manipulated conditions. The flaw impacts versions 1.2.0 through 1.2.6 and requires local attacker access. The CVSS 4.8 score reflects a medium severity with local attack vector and low privileges required. No cloud service is involved, and no official remediation level or patch link is provided in the available data.
Potential Impact
The vulnerability can cause inefficient algorithmic complexity, which may degrade system performance or cause denial of service conditions when exploited locally. There is no indication of privilege escalation, remote exploitation, or data confidentiality/integrity impact. No known active exploitation has been reported.
Mitigation Recommendations
A patch is recommended to address this issue; however, no official patch or vendor advisory is currently available. Users should monitor the musl libc project for updates and apply any forthcoming patches promptly. Since this requires local access, limiting local user permissions and monitoring for unusual local activity may help reduce risk until a fix is applied.
CVE-2026-6042: Inefficient Algorithmic Complexity in musl libc
Description
A security flaw has been discovered in musl libc up to 1.2.6. Affected is the function iconv of the file src/locale/iconv.c of the component GB18030 4-byte Decoder. Performing a manipulation results in inefficient algorithmic complexity. The attack must be initiated from a local position. To fix this issue, it is recommended to deploy a patch.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability in musl libc's iconv function (src/locale/iconv.c) affects the GB18030 4-byte Decoder component and results in inefficient algorithmic complexity under certain manipulated conditions. The flaw impacts versions 1.2.0 through 1.2.6 and requires local attacker access. The CVSS 4.8 score reflects a medium severity with local attack vector and low privileges required. No cloud service is involved, and no official remediation level or patch link is provided in the available data.
Potential Impact
The vulnerability can cause inefficient algorithmic complexity, which may degrade system performance or cause denial of service conditions when exploited locally. There is no indication of privilege escalation, remote exploitation, or data confidentiality/integrity impact. No known active exploitation has been reported.
Mitigation Recommendations
A patch is recommended to address this issue; however, no official patch or vendor advisory is currently available. Users should monitor the musl libc project for updates and apply any forthcoming patches promptly. Since this requires local access, limiting local user permissions and monitoring for unusual local activity may help reduce risk until a fix is applied.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulDB
- Date Reserved
- 2026-04-09T17:34:11.256Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 69d8c0ed1cc7ad14daa35351
Added to database: 4/10/2026, 9:20:45 AM
Last enriched: 4/10/2026, 9:36:47 AM
Last updated: 4/11/2026, 6:02:30 AM
Views: 10
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