Incorrect Comparison Affecting httpsig-hyper package, versions <0.0.23
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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Test your applications- Snyk IDSNYK-RUST-HTTPSIGHYPER-15317385
- published19 Feb 2026
- disclosed17 Feb 2026
- creditSergiy S.
Introduced: 17 Feb 2026
NewCVE-2026-26275 (opens in a new tab)How to fix?
Upgrade httpsig-hyper to version 0.0.23 or higher.
Overview
httpsig-hyper is an implementation of IETF RFC 9421 for HTTP message signatures
Affected versions of this package are vulnerable to Incorrect Comparison in the verify_content_digest() function, which treats one of the comparators (_expected_digest) as a pattern binding rather than the underlying value, making the comparison meaningless. An attacker can bypass message integrity checks by submitting a message with a mismatched digest value, which will still be accepted as valid.