Headline
GHSA-v6x3-9r38-r27q: Sequoia PGP has Subtraction Overflow when aes_key_unwrap function is provided ciphertext that is too short
In Sequoia before 2.1.0, aes_key_unwrap panics if passed a ciphertext that is too short. A remote attacker can take advantage of this issue to crash an application by sending a victim an encrypted message with a crafted PKESK or SKESK packet.
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- GitHub Advisory Database
- GitHub Reviewed
- CVE-2025-67897
Sequoia PGP has Subtraction Overflow when aes_key_unwrap function is provided ciphertext that is too short
Moderate severity GitHub Reviewed Published Dec 14, 2025 to the GitHub Advisory Database • Updated Dec 16, 2025
Package
cargo sequoia-openpgp (Rust)
Affected versions
< 2.1.0
Description
Published to the GitHub Advisory Database
Dec 14, 2025
Last updated
Dec 16, 2025