CVE-2026-32280High· 7.5▾ TwilightDuring 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 u…
▾ Twilight zone — High severity, or a signal on a lesser flaw
impact 41.3 · likelihood 0.1 · exploitation 0
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Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake.
Exploit-prediction probability, daily snapshots since Jul 4.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via NVD
0.6%
Last analysed / modified upstream
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.
go < 1.25.9go >= 1.26.0, < 1.26.2Upgrade past the affected range:
go 1.26.2Affected packages:
stdlib >= 1.26.0-0, < 1.26.2Patched in:
stdlib 1.26.2Connected by shared product, vendor, weakness, or advisory.
CVE-2026-39820High· 7.5Well-crafted inputs reaching ParseAddress, ParseAddressList, and ParseDate were able to trigger excessive CPU exhaustion and memory allocations.
CVE-2026-32283High· 7.5If one side of the TLS connection sends multiple key update messages post-handshake in a single record, the connection can deadlock, causing uncontrolled consumption of resources
CVE-2025-61726High· 7.5The net/url package does not set a limit on the number of query parameters in a query
CVE-2026-33814High· 7.5When processing HTTP/2 SETTINGS frames, transport will enter an infinite loop of writing CONTINUATION frames if it receives a SETTINGS_MAX_FRAME_SIZE with a value of 0.
CVE-2026-27137High· 7.5When verifying a certificate chain which contains a certificate containing multiple email address constraints which share common local portions but different domain portions, these constraints will not be properly applied, and only the l…
CVE-2026-42499High· 7.5Pathological inputs could cause DoS through consumePhrase when parsing an email address according to RFC 5322.