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GHSA-g433-pq76-6cmf

HighCVSS 8.2 / 10
Published Feb 13, 2026·Last modified Mar 25, 2026
Affected Components(0)

No affected components available

Description

We publish a GitHub security advisory for any releases whose CHANGELOG includes bug-fixes, and encourage our users to upgrade. The latest releases of the hpke-rs and hpke-rs-rust-crypto crates contain the following bug-fixes:

hpke-rs

  • #127: Fix KemAlgorithm::TryFrom<u16> mapping where 0x004D incorrectly resolved to XWingDraft06 instead of XWingDraft06Obsolete.
  • #123: Fix potential overflow in context counter and switch to use u64.
  • #128: Return errors when trying to use open/seal with export only ciphersuite and when using kdf export with an output that's too long (instead of truncating it)

The issue fixed in #123 was first reported by Nadim Kobeissi. The issues fixed in #127 and #128 were first reported by Scott Arciszewski.

hpke-rs-rust-crypto

  • #124: Error out on x25519 0 keys

The issue fixed in #124 was first reported by Nadim Kobeissi.

Risk Scores
Base Score
8.2

The vulnerability can be exploited over the network without needing physical access. It is easy for an attacker to exploit this vulnerability. An attacker does not need any special privileges or access rights. No user interaction is needed for the attacker to exploit this vulnerability.

Threat Intelligence
4.6

Exploitation attempts have been detected. Elevated vigilance and prompt remediation are advised.

EPSS
N/A

Probability that this vulnerability will be exploited in the wild within the next 30 days.

Exploit
Not available

We did not find any exploit available. Neither in GitHub repositories nor in the Exploit-Database.

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