[ Vendor · 15 CVEs ]

Go standard library

CVEs affecting Go standard library published in the last 30 days, plus any Go standard library CVE on CISA's exploited list.

CVEPublishedSeverityVulnerabilitySignals
CVE-2026-111943 21 Oct 2026 Not scored yet Go standard library crypto/x509On most platforms, Go uses the given system root certificates. However, in some narrower cases, the system trust stores may not be updated without… Fix
CVE-2026-97031 8 Oct 2026 CVSS 7.5 Go standard library crypto/tlsMultiple ECH outer extension references are not permitted under RFC 9849; previously, a client could send a well-crafted packet that could trigger…
CVE-2026-97032 8 Oct 2026 CVSS 7.5 Go standard library net/httpHTTP/2 servers could end up crashing due to inadvertently modifying its HPACK encoder concurrently. This happens because the server modifies the…
CVE-2026-94448 8 Oct 2026 CVSS 6.1 Go standard library html/templateWhen a JavaScript template literal contains consecutive expressions, the context tracking state was not properly reset upon entering a new…
CVE-2026-97030 8 Oct 2026 CVSS 6.1 Go standard library html/templateA trusted template author may have previously written a valid template wherein the use of the 'yield' keyword would not be correctly escaped. We now…
CVE-2026-78669 8 Oct 2026 CVSS 7.5 Go standard library net/httpA malicious HTTP/2 peer can cause excessive CPU consumption in the client or server by opening a large number of streams and then sending many small…
CVE-2026-94439 8 Oct 2026 CVSS 7.5 Go standard library net/httpWhen an HTTP server handler sends a 2xx response to an HTTP/1 CONNECT request and returns without hijacking the connection, the server improperly…
CVE-2026-94440 8 Oct 2026 CVSS 7.5 Go standard library net/textprotoParsing a multipart form can bypass memory limits and read an arbitrarily long line into memory when the remaining limit at the start of a part is…
CVE-2026-78659 8 Oct 2026 CVSS 7.5 Go standard library net/httpWhen "Trailer" headers are sent by a client, the HTTP server internally uses the header values to populate the Request.Trailer map passed to the…
CVE-2026-78660 8 Oct 2026 CVSS 7.5 Go standard library net/httpHistorically, we have been rather lax about malformed framing-related headers in our HTTP/2 implementation, as they cannot interfere with HTTP/2…
CVE-2026-78663 8 Oct 2026 CVSS 9.1 Go standard library net/httpThe HTTP/2 server can refund connection-level flow control twice for the same data: Once when a client resets a stream (refunding data for any…
CVE-2026-78667 8 Oct 2026 CVSS 7.5 Go standard library net/httpWhen parsing a Range header containing a large number of small ranges, FileServer(FS), ServeContent, and ServeFile(FS) can consume an excessive…
CVE-2026-56857 8 Oct 2026 CVSS 9.8 Go standard library osOn Windows, when the target of Root.Mkdir or Root.MkdirAll is a junction pointing to an empty location, the operation can create a directory at the…
CVE-2026-56866 8 Oct 2026 CVSS 7.5 Go standard library net/httpWhen http.Transport sends an HTTP/1 CONNECT request with a non-empty Request.Body, it writes the body directly to the connection without framing…
CVE-2026-39822 8 Jul 2026 CVSS 7.8 Go standard library osOn Unix systems, opening a file in an os.Root improperly follows symlinks to locations outside of the Root when the final path component of the a…