RUSTSEC-2026-0070

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Source

https://rustsec.org/advisories/RUSTSEC-2026-0070

Import Source

https://github.com/rustsec/advisory-db/blob/osv/crates/RUSTSEC-2026-0070.json

JSON Data

https://api.osv.dev/v1/vulns/RUSTSEC-2026-0070

Aliases

Published

2026-02-11T12:00:00Z

Modified

2026-03-24T08:41:23.142103Z

Severity

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

Summary

Panic When Opening or Sealing on Export-Only Context

Details

Constructing an HPKE Context with the AEAD algorithm set to HpkeExport resulted in a panic when calling Context::seal, or Context::open. This was due to an underflowing integer subtraction when calculating the length of a vector allocation for the AEAD nonce, which would panic on its own in debug mode and cause out-of-memory abort on the allocation in release mode.

Impact

Applications that could be made to use an HPKE context configured with HpkeExport as AEAD algorithm to open or seal a ciphertext would crash. Other applications are unaffected.

Mitigation

Starting with version 0.6.0, an error will be returned when attempting to call Context::seal or Context::open on an HPKE context with HpkeExport as AEADAlgorithm.

Database specific

{
    "license": "CC0-1.0"
}

References

Affected packages

crates.io / hpke-rs

Package

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

Affected ranges

Type: SEMVER
Events: Introduced

0.0.0-0

Fixed

0.6.0

Ecosystem specific

{
    "affected_functions": null,
    "affects": {
        "arch": [],
        "functions": [
            "hpke_rs::Context::open",
            "hpke_rs::Context::seal"
        ],
        "os": []
    }
}