[security] Go 1.26.3 and Go 1.25.10 are released

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Publishergroups.google.com

Article IDNo stable ID in source URL

Verified snapshot27 Sept 2026, 08:30 UTC

Linked CVEs6

Linked CVE reports

These are source relationships, not a claim that this article fixes every affected product or branch.

CVE-2026-33814Infinite loop in HTTP/2 transport when given bad SETTINGS_MAX_FRAME_SIZE in net/http/internal/http2 in golang.org/x/net
CVE-2026-42499Quadratic string concatenation in consumePhrase in net/mail
CVE-2026-39825ReverseProxy forwards queries with more than urlmaxqueryparams parameters in net/http/httputil
CVE-2026-42501Malicious module proxy can bypass checksum database in cmd/go
CVE-2026-39823Bypass of meta content URL escaping causes XSS in html/template
CVE-2026-39826Escaper bypass leads to XSS in html/template

Source and provenance

Original title: [security] Go 1.26.3 and Go 1.25.10 are released. Captured 27 Sept 2026, 08:30 UTC. The stored article is used for enrichment and change detection; BlackTree does not republish the publisher's full text here.

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