CVE-2026-41990

Summary

Libgcrypt before 1.12.2 mishandles Dilithium signing. Writes to a static array lack a bounds check but do not use attacker-controlled data.

Affected Software

Weaknesses

• CWE-787: CWE-787 Out-of-bounds Write

ADP Enrichment

CISA ADP Vulnrichment

• SSVC:
• Exploitation: none
  • Automatable: no
  • Technical Impact: partial

References

• https://lists.gnupg.org/pipermail/gnupg-announce/2026q2/000503.html
• https://www.openwall.com/lists/oss-security/2026/04/21/1
• https://dev.gnupg.org/T8208

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