🛡️ CVE-2024-53856 — pgp

🟠 CVSS 8.0 — High ✅ No Known Exploit CWE-130 NVD
8.0
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

rPGP Panics on Malformed Untrusted Input

During a security audit, [Radically Open Security](https://www.radicallyopensecurity.com/) discovered several reachable edge cases which allow an attacker to trigger rpgp crashes by providing crafted data.

Impact

When processing malformed input, rpgp can run into Rust panics which halt the program.

This can happen in the following scenarios:

  • Parsing OpenPGP messages from binary or armor format
  • Decrypting OpenPGP messages via decrypt_with_password()
  • Parsing or converting public keys
  • Parsing signed cleartext messages from armor format
  • Using malformed private keys to sign or encrypt

Given the affected components, we consider most attack vectors to be reachable by remote attackers during typical use cases of the rpgp library. The attack complexity is low since the malformed messages are generic, short, and require no victim-specific knowledge.

The result is a denial-of-service impact via program termination. There is no impact to confidentiality or integrity security properties.

Versions and Patches

All recent versions are affected by at least some of the above mentioned issues.

The vulnerabilities have been fixed with version 0.14.1. We recommend all users to upgrade to this version.

References

The security audit was made possible by the [NLnet Foundation NGI Zero Core](https://nlnet.nl/core/) grant program [for rpgp](https://nlnet.nl/project/rPGP-cryptorefresh/).

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is low, an attacker needs no privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality none, integrity none, availability high.

Affected software

CVE-2024-53856 is recorded against 2 packages.

  • pgp
  • unknown

Timeline and source

Published on 5 December 2024 and last revised on 26 December 2025. No public exploit is currently recorded for this entry. Record sourced from NVD.

References

github.com (Web)
nvd.nist.gov (Advisory)
github.com (Package)
rustsec.org (Web)

CVE-2024-53856 on other distributions

Each distribution ships its own build and its own fixed version. Pick the one you run:

Details

Severity HIGH
CVSS Score 8.0
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE CWE-130
Public Exploit ✅ No
Source NVD
Published 2024-12-05
Updated 2026-08-12
Modified 2025-12-26
Fix URL N/A

Affected Packages

Software From version Fixed in
pgp — —
unknown — —

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