CVE-2024-51502: Panic Vulnerability in loona-hpack

Severity: medium (CVSS 5.1 v4.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.5% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2024-11-04 · updated 2026-06-17
Weakness: CWE-755

Description

loona is an experimental, HTTP/1.1 and HTTP/2 implementation in Rust on top of io-uring. `loona-hpack` suffers from the same vulnerability as the original `hpack` as documented in issue #11. All users who try to decode untrusted input using the Decoder are vulnerable to this exploit. This issue has been addressed in release version 0.4.3. All users are advised to upgrade. There are no known workarounds for this vulnerability.

Affected products

bearcove loona: before 0.4.3

References

https://github.com/bearcove/loona/commit/9a4028ec6484f50a320281271a41a5040ddb1ba8
https://github.com/bearcove/loona/security/advisories/GHSA-7vm6-qwh5-9x44
https://github.com/mlalic/hpack-rs/issues/11

Get alerted when CVE-2024-51502 or the next vulnerability affects your stack