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CVE-2026-76234 — Panic in libcrux-psq — CVE Details

HIGH

Panic in `libcrux-psq` on decryption of malformed AES-GCM ciphertext

Published February 8, 2026Updated August 24, 2026Source: osv

Summary

The latest releases of the libcrux-psq crate contains the following bug-fix: [#1319](https://github.com/cryspen/libcrux/pull/1319): Propagate AEADError instead of panicking The issue fixed in [#1319](https://github.com/cryspen/libcrux/pull/1319) was first reported by Nadim Kobeissi.

Advisory Timeline

  • First published February 8, 2026 (246 days ago).
  • Last revised August 24, 2026 — 197 days after initial publication.

Remediation

Upgrade to the fixed version using your package manager.

Cargo
Update libcrux-psq to 0.0.7 or later
cargo update -p libcrux-psq --precise 0.0.7

After upgrading, run your dependency scanner again to confirm the vulnerability is resolved.

Affected Packages (1)

Affects 1 ecosystem: crates.io (1).

PackageEcosystemAffectedFixed In
libcrux-psq
crates.io
All versions0.0.7

CVSS Score Breakdown

What the CVSS (Common Vulnerability Scoring System) 7.0 score means for each attack dimension.

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

CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

References

Frequently Asked Questions

What is CVE-2026-76234?
Panic in `libcrux-psq` on decryption of malformed AES-GCM ciphertext This vulnerability has been assigned a severity rating of HIGH (CVSS score: 7.0/10).
How do I check if my project is affected by CVE-2026-76234?
CVE-2026-76234 affects libcrux-psq. Use GeekWala's free vulnerability scanner to check your dependencies against CVE-2026-76234 and 200,000+ other known vulnerabilities.

Severity & Exploitability

CVSS Score
7.0

High exploitability or significant impact. Prioritize remediation within days.

Also Known As

RUSTSEC-2026-0025
GHSA-435g-fcv3-8j26
RUSTSEC-2026-0023
RUSTSEC-2026-0024
RUSTSEC-2026-0026

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