https://db.gcve.eu/rss/recent/all/10 Most recent entries from all 2026-09-28T14:10:15.684940+00:00 Vulnerability-Lookup info@gcve.eu python-feedgen Contains only the most 10 recent entries. https://db.gcve.eu/vuln/brew-bilix-cve-2026-59980 BREW-bilix-CVE-2026-59980 — hpack: Unbounded variable integer decoding can cause run-away computation on malformed input 2026-09-28T14:10:15.705622+00:00

Affected: Homebrew: bilix

### Impact

Users of the python-hyper/hpack library, most commonly used as downstream dependency of the python-hyper/h2 library (an HTTP/2 client and server implementation). Unbounded variable integer decoding can cause run-away computation on malformed input leading to O(n^2) runtime, effectively blocking further processing with large enough unsanitized input.

### Patches A fix is available in python-hyper/hpack v4.2.0 to restricted variable integer decoding to uint32 to prevent run-away computation.

### Workarounds Sanitize input to hpack decoder for long sequences of `0xFF` values to prevent malicious use.

 https://db.gcve.eu/vuln/cve-2026-59980 CVE-2026-59980 — hpack: Unbounded variable integer decoding can cause run-away computation on malformed input 2026-09-28T14:10:15.705675+00:00

Affected: python-hyper hpack

hpack is an HTTP/2 Header Encoding for Python. Prior to version 4.2.0, unbounded variable integer decoding can cause run-away computation on malformed input leading to O(n^2) runtime, effectively blocking further processing with large enough unsanitized input. A fix is available in python-hyper/hpack v4.2.0 to restricted variable integer decoding to uint32 to prevent run-away computation. As a workaround, sanitize input to hpack decoder for long sequences of `0xFF` values to prevent malicious use.