RUSTSEC-2026-0073

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Source

https://rustsec.org/advisories/RUSTSEC-2026-0073

Import Source

https://github.com/rustsec/advisory-db/blob/osv/crates/RUSTSEC-2026-0073.json

JSON Data

https://api.osv.dev/v1/vulns/RUSTSEC-2026-0073

Aliases

GHSA-pv9v-5j35-xwcr

Published

2026-03-04T12:00:00Z

Modified

2026-03-27T05:55:06Z

Severity

8.7 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N CVSS Calculator

Summary

Panic in Standalone MAC Operations

Details

An incorrect constant for the key length in libcrux-poly1305 caused the standalone MAC function libcrux_poly1305::mac to always panic with an out-of-bounds memory access.

Impact

Applications wishing to use libcrux-poly1305 as a standalone MAC would experience panics. The use of libcrux-poly1305 in libcrux-chacha20poly1305 is unaffected.

Mitigation

Starting from version 0.0.5, the correct value is used for the key length constant.

Database specific

{
    "license": "CC0-1.0"
}

References

Affected packages

crates.io / libcrux-poly1305

Package

Name: libcrux-poly1305; View open source insights on deps.dev
Purl: pkg:cargo/libcrux-poly1305

Affected ranges

Type: SEMVER
Events: Introduced

0.0.0-0

Fixed

0.0.5

Ecosystem specific

{
    "affected_functions": null,
    "affects": {
        "arch": [],
        "functions": [
            "libcrux_poly1305::mac"
        ],
        "os": []
    }
}