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 op

Routine

LOW 2.9UPGRADE

CVE-2024-58261 is a low-severity flaw (CVSS 2.9) affecting sequoia-openpgp. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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.

Why this priority

Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	2.9 (Low)
Attack vector	Local
Attack complexity	High
Privileges needed	None
User interaction	None
EPSS exploit chance	0.4% (top 63%)
CISA exploited list	No
Weakness	CWE-835
Published	2025-07-27
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: sequoia-pgp

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2025-07-27 20:15 UTCPublished CVE record published
2026-06-17 08:14 UTCUpdated Record last modified

sequoia-pgp sequoia-openpgp UPGRADE

Affected: >= 1.13.0 and < 1.21.0

Fixed in: 1.21.0

Safe to downgrade to: a release before 1.13.0

1. Check installed version

apt-cache policy sequoia-openpgp || rpm -q sequoia-openpgp || sequoia-openpgp --version

2. UPGRADE to 1.21.0 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade sequoia-openpgp

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade sequoia-openpgp

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

3. If no update is available yet, DOWNGRADE to a release before 1.13.0 (Debian / Ubuntu)

apt-cache madison sequoia-openpgp sudo apt install sequoia-openpgp=<VERSION_BEFORE_1.13.0> sudo apt-mark hold sequoia-openpgp

3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list sequoia-openpgp sudo dnf downgrade sequoia-openpgp-<VERSION_BEFORE_1.13.0> sudo dnf versionlock add sequoia-openpgp

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2024-58261?

sequoia-openpgp: upgrade to 1.21.0. Exact commands for each OS are on this page.

Is CVE-2024-58261 being exploited?

CVE-2024-58261 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2024-58261 affect?

CVE-2024-58261 affects sequoia-openpgp. Severity is low (CVSS 2.9). 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.

How urgent is CVE-2024-58261?

Priority 24/100. Public exploit reference

Related CVEs

CVE-2023-53160 LOW 2.9 UPGRADE The sequoia-openpgp crate before 1.16.0 for Rust allows out-of-bounds array access and a panic.

References

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