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🛡️ RUSTSEC-2026-0072 — hpke-rs-rust-crypto

⚪ Unknown ✅ No Known Exploit OSV
N/A
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

Missing Check for All-Zero X25519 Shared Secret

Computing an X25519 shared secret with

x25519_dalek::StaticSecret::diffie_hellman does not include the

check that the key exchange was contributory, i.e. does not ensure on

its own that the resulting shared secret is non-zero.

Impact

RFC 9180 mandates that implementations of HPKE must check for all zero

Diffie-Hellman shared secrets and abort if so.

Applications using hpke-rs with the RustCryto provider would not

perform this check allowing for non-contributive Diffie-Hellman shared

secrets. Applications using hpke-rs with the libcrux provider are not

affected.

Mitigation

Starting with version 0.6.0, an error will be returned when

the computed Diffie-Hellman shared secret is all-zero.

Affected software

RUSTSEC-2026-0072 is recorded against 1 package.

  • hpke-rs-rust-crypto

Timeline and source

Published on 4 February 2026 and last revised on 24 March 2026. No public exploit is currently recorded for this entry. Record sourced from OSV.

References

crates.io (Package)
rustsec.org (Advisory)
github.com (Web)

Other advisories for this package

hpke-rs-rust-crypto has other advisories on record. If you are patching this one, these are worth checking on the same host:

Details

Severity Unknown
CVSS Score N/A
CVSS Vector N/A
CWE N/A
Public Exploit ✅ No
Source OSV
Published 2026-02-04
Updated 2026-08-20
Modified 2026-03-24
Fix URL N/A

Affected Packages

Software From version Fixed in
hpke-rs-rust-crypto — —

Similar Threats

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ⓘ Data Notice: The information presented above has been compiled from publicly available internet sources. Boteraser aggregates this data solely for informational purposes and does not independently classify, evaluate, or endorse any findings about the vulnerabilities listed. The accuracy and completeness of this information is the sole responsibility of the original publishers. Boteraser and its operators accept no liability for any decisions made based on this data.

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