Out-of-bounds Read Affecting open-quantum-safe/liboqs package, versions [,0.16.0-rc1)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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- published30 May 2026
- disclosed29 May 2026
- creditVishnu2707
Introduced: 29 May 2026
CVE-2026-46344 (opens in a new tab)How to fix?
Upgrade open-quantum-safe/liboqs to version 0.16.0-rc1 or higher.
Overview
Affected versions of this package are vulnerable to Out-of-bounds Read in the xmss_sign_open or xmssmt_sign_open process when a signature buffer of the expected size is provided, but the public key's OID references a parameter set with a larger signature size. An attacker can cause a crash of the verifying process by supplying a mismatched public key and signature buffer, potentially leading to denial of service.