CLEANSTART-2026-WB89098 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

🗓️ 30 Apr 2026 00:58:56Reported by GoogleType

osv🔗 osv.dev👁 27 Views

OpenBao FIPS: chain building does not limit work with many intermediate certificates in VerifyOptions.

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Source	Link
github	www.github.com/cleanstart-dev/cleanstart-security-advisories/tree/main/advisories/2026/CLEANSTART-2026-WB89098.json
osv	www.osv.dev/vulnerability/CVE-2025-61727
osv	www.osv.dev/vulnerability/CVE-2025-61729
osv	www.osv.dev/vulnerability/CVE-2025-68121
osv	www.osv.dev/vulnerability/CVE-2026-1229
osv	www.osv.dev/vulnerability/CVE-2026-25679
osv	www.osv.dev/vulnerability/CVE-2026-26958
osv	www.osv.dev/vulnerability/CVE-2026-27139
osv	www.osv.dev/vulnerability/CVE-2026-27142
osv	www.osv.dev/vulnerability/CVE-2026-32280

18 Sep 2026 12:17Current

6.7Medium risk

Vulners AI Score6.7

CVSS 3.19.8

EPSS0.01625

chain building intermediate certificates verify options security vulnerabilities openbao fips package