GHSA-9rmp-2568-59rv
HIGHrPGP Panics on Malformed Untrusted Input
EPSS Exploitation Probability
EPSS (Exploit Prediction Scoring System) is a daily probability model maintained by FIRST.org. It estimates the likelihood a CVE will be exploited in production environments within the next 30 days, derived from real-world threat intelligence signals.
Blast Radius
pgpReal-time download stats are indexed for npm and PyPI packages. This vulnerability affects crates.io packages — download data is not available via public APIs for these ecosystems.
Description
During a security audit, Radically Open Security 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 grant program for rpgp.
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| 🦀crates.io | pgp | all versions | 0.14.1 |
Detection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for pgp. O3's reachability analysis confirms whether the vulnerable code path is actually invoked in your application, so you act on real exposure instead of every transitive match.
Fix
Update pgp to 0.14.1 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-9rmp-2568-59rv is resolved across your whole dependency graph.
Workarounds
If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.
How O3 protects you
O3 pinpoints whether GHSA-9rmp-2568-59rv is reachable in your code and exactly where to fix it, then blocks exploitation in production at runtime until the patched version is deployed.
Tailored to GHSA-9rmp-2568-59rv. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.
Frequently Asked Questions
Is GHSA-9rmp-2568-59rv in your dependencies?
O3 detects GHSA-9rmp-2568-59rv across crates.io dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.