GHSA-h858-mf2m-8jf4

GHSA-h858-mf2m-8jf4 PUBLISHED CVSS 2.9000000953674316 LOW

Record from GitHub Advisory Database · Published February 18, 2026

zlib before 1.3.2 allows CPU consumption via crc32_combine64 and crc32_combine_gen64 because x2nmodp can do right shifts within a loop that has no termination condition.

Fixed versions

Upgrade to a fixed version or later. Language registries are listed first, then Linux distributions, then vendor products.

Package	Ecosystem	Fixed in
zlib	Chainguard	1.3.2-r0
zlib	Wolfi	1.3.2-r0

Risk scores

CVSS 3.1

2.9000000953674316

CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L

Affected products

Vendor	Product	Versions
chainguard	zlib	0
wolfi	zlib	0

Timeline

Feb 18, 2026 CVE Published
Apr 10, 2026 Security Advisory

Query this with the API

The same record, from the CLI:

vulnetix vdb vuln GHSA-h858-mf2m-8jf4
vulnetix vdb fixes GHSA-h858-mf2m-8jf4

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curl -s -H "Authorization: ApiKey ${VULNETIX_ORG_ID}:${VULNETIX_API_KEY}" \
  "https://api.vdb.vulnetix.com/v2/vuln/GHSA-h858-mf2m-8jf4/fixes/registry"

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References

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