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TI-2026-29014 Aliases CVE-2026-40200GHSA-qrwv-475h-2439

An issue was discovered in musl libc 0.7.10 through 1.2.6.

Priority LOW 36CWE-670Published · Updated

Key facts

Attack vector
Local
Privileges required
None
User interaction
None
Attack complexity
High
Impact type
—
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA.

Summary

An issue was discovered in musl libc 0.7.10 through 1.2.6. Stack-based memory corruption can occur during qsort of very large arrays, due to incorrectly implemented double-word primitives. The number of elements must exceed about seven million, i.e., the 32nd Leonardo number on 32-bit platforms (or the 64th Leonardo number on 64-bit platforms, which is not practical).

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00167 5th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
musl-libcmusl0.7.10 – 1.2.6—No fix listedCNA
  • musl Vendormusl-libc Affected 0.7.10 – 1.2.6 Fixed in — No fix listed CNA

Remediation

No fixed version listed by the sources yet.

Vendor assessments

Red Hat

Red Hat's page for this CVE →

Not affected: 1 product
  • Red Hat

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-40200
  2. 2026-10-03 Alias added: GHSA-qrwv-475h-2439

References

Other 2

  • TI-2019-10919 musl libc through 1.1.23 has an x87 floating-point stack adjustment imbalance, related to… CVSS 3.1CRITICAL 9.8
  • TI-2015-01634 Stack-based buffer overflow in the inet_pton function in network/inet_pton.c in musl libc… CVSS 3.0CRITICAL 9.8
  • TI-2014-02811 Out-of-bounds write in musl libc CVSS 3.1CRITICAL 9.8
  • TI-2025-19457 Out-of-bounds write in musl-libc musl CVSS 3.1HIGH 8.1
  • TI-2017-11441 musl libc before 1.1.17 has a buffer overflow via crafted DNS replies because… CVSS 3.0HIGH 7.5
  • TI-2026-85465 Integer overflows in musl libc regcomp allow heap out-of-bounds writes CVSS 3.1HIGH 8.1
See all 7 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences