CVE-2026-32280 (GCVE-0-2026-32280)

Vulnerability from cvelistv5 – Published: 2026-04-08 01:06 – Updated: 2026-04-08 17:46
VLAI?
Title
Unexpected work during chain building in crypto/x509
Summary
During chain building, the amount of work that is done is not correctly limited when a large number of intermediate certificates are passed in VerifyOptions.Intermediates, which can lead to a denial of service. This affects both direct users of crypto/x509 and users of crypto/tls.
Severity ?
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE
  • CWE-770 - Allocation of Resources Without Limits or Throttling
Assigner
Go
References
Impacted products
Vendor Product Version
Go standard library crypto/x509 Affected: 0 , < 1.25.9 (semver)
Affected: 1.26.0-0 , < 1.26.2 (semver)
Create a notification for this product.
Credits
Jakub Ciolek - https://ciolek.dev
Show details on NVD website
To clipboard 

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              "baseSeverity": "HIGH",
              "confidentialityImpact": "NONE",
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              "privilegesRequired": "NONE",
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          "url": "https://groups.google.com/g/golang-announce/c/0uYbvbPZRWU"
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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