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TI-2026-30384 Aliases CVE-2026-41990GHSA-78pv-qq8x-94px

Out-of-bounds write in GnuPG Libgcrypt

Priority LOW 18CWE-787Published · Updated

Key facts

Attack vector
Local
Privileges required
None
User interaction
None
Attack complexity
High
Impact type
—
Confidentiality · integrity · availability
None · Low · Low
Fix status
Partial Red Hat: 1 fixed, 7 without a fix

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and Red Hat.

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00229 13th percentileScored 2026-11-07
Fix Partial Libgcrypt (gnupg): 1.12.2Red Hat: 1 advisoryRed Hat: 1 fixed, 7 without a fix

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

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

Affected products

VendorProductAffected versionsFixed inStatusSource
GnuPGLibgcrypt1.12.0 to before 1.12.21.12.2Patch availableCNA
  • Libgcrypt VendorGnuPG Affected 1.12.0 to before 1.12.2 Fixed in 1.12.2 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:gnupg:libgcrypt:*:*:*:*:*:*:*:*1.12.0 to before 1.12.2VulnerableGnuPG
  • cpe:2.3:a:gnupg:libgcrypt:*:*:*:*:*:*:*:* Versions 1.12.0 to before 1.12.2 Vulnerable ·GnuPG

Remediation

  • Fix · CNA Libgcrypt (gnupg) Fixed in 1.12.2

Red Hat 1 advisory

  • RHSA-2026:8466 Released 2026-04-16 · Red Hat rating Moderate
    Red Hat Hardened Images RPMs bug fix and enhancement update
    • Red Hat Hardened Images libgcrypt-1.12.2-1.hum1@aarch64, libgcrypt-1.12.2-1.hum1@src, libgcrypt-1.12.2-1.hum1@x86_64 +2

Vendor assessments

Red Hat

Red Hat rating: Low. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Enterprise Linux 10AffectedNo fix yet: Fix deferred
Red Hat Enterprise Linux 6AffectedNo fix yet: Fix deferred
Red Hat Enterprise Linux 7AffectedNo fix yet: Fix deferred
Red Hat Enterprise Linux 8AffectedNo fix yet: Fix deferred
Red Hat Enterprise Linux 9AffectedNo fix yet: Fix deferred
Red Hat OpenShift AI (RHOAI)Affected—
Red Hat OpenShift Container Platform 4AffectedNo fix yet: Fix deferred
Red Hat Hardened ImagesFixed RHSA-2026:8466
Not affected: 1 product
  • Red Hat OpenShift AI (RHOAI)

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-41990
  2. 2026-10-03 Alias added: GHSA-78pv-qq8x-94px
  3. 2026-11-06 Affected versions changed · Red Hat

References

Other 3

  • TI-2021-12953 Libgcrypt before 1.8.8 and 1.9.x before 1.9.3 mishandles ElGamal encryption because it… CVSS 3.1HIGH 7.5
  • TI-2017-00354 Information disclosure in libgcrypt CVSS 3.0HIGH 7.5
  • TI-2017-05168 Information disclosure in GnuPG libgcrypt CVSS 3.0MEDIUM 6.8
  • TI-2021-02343 _gcry_md_block_write in cipher/hash-common.c in Libgcrypt version 1.9.0 has a heap-based… CVSS 3.1HIGH 7.8
  • TI-2018-04986 cipher/elgamal.c in Libgcrypt through 1.8.2, when used to encrypt messages directly… CVSS 3.0HIGH 7.5
  • TI-2019-09661 In Libgcrypt 1.8.4, the C implementation of AES is vulnerable to a flush-and-reload… CVSS 3.1MEDIUM 5.9
See all 16 →

Sources

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