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CVE-2026-56865

Medium priority
Needs evaluation

(A malicious GOPROXY was previously capable of forging up to two sumdb ...)

16 affected packages

golang, golang-1.6, golang-1.8, golang-1.9, golang-1.10...

Package 26.04 LTS 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
golang Not in release Not in release Not in release
golang-1.6 Not in release Not in release Not in release
golang-1.8 Not in release Not in release Not in release Needs evaluation
golang-1.9 Not in release Not in release Not in release Needs evaluation
golang-1.10 Not in release Not in release Not in release Needs evaluation
golang-1.13 Not in release Not in release Needs evaluation Needs evaluation Needs evaluation
golang-1.14 Not in release Not in release Not in release Needs evaluation
golang-1.16 Not in release Not in release Not in release Needs evaluation Needs evaluation
golang-1.17 Not in release Not in release Needs evaluation
golang-1.18 Not in release Not in release Needs evaluation Needs evaluation Needs evaluation
golang-1.20 Not in release Not in release Needs evaluation Needs evaluation
golang-1.21 Not in release Needs evaluation Needs evaluation Needs evaluation
golang-1.22 Not in release Needs evaluation Needs evaluation Needs evaluation
golang-1.23 Needs evaluation Needs evaluation Needs evaluation
golang-1.24 Needs evaluation Needs evaluation Needs evaluation
golang-1.25 Needs evaluation Not in release Not in release
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CVE-2026-56864

Medium priority
Needs evaluation

(A malicious GOSUMDB was capable of serving arbitrary module content no ...)

16 affected packages

golang, golang-1.6, golang-1.8, golang-1.9, golang-1.10...

Package 26.04 LTS 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
golang Not in release Not in release Not in release
golang-1.6 Not in release Not in release Not in release
golang-1.8 Not in release Not in release Not in release Needs evaluation
golang-1.9 Not in release Not in release Not in release Needs evaluation
golang-1.10 Not in release Not in release Not in release Needs evaluation
golang-1.13 Not in release Not in release Needs evaluation Needs evaluation Needs evaluation
golang-1.14 Not in release Not in release Not in release Needs evaluation
golang-1.16 Not in release Not in release Not in release Needs evaluation Needs evaluation
golang-1.17 Not in release Not in release Needs evaluation
golang-1.18 Not in release Not in release Needs evaluation Needs evaluation Needs evaluation
golang-1.20 Not in release Not in release Needs evaluation Needs evaluation
golang-1.21 Not in release Needs evaluation Needs evaluation Needs evaluation
golang-1.22 Not in release Needs evaluation Needs evaluation Needs evaluation
golang-1.23 Needs evaluation Needs evaluation Needs evaluation
golang-1.24 Needs evaluation Needs evaluation Needs evaluation
golang-1.25 Needs evaluation Not in release Not in release
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CVE-2026-56862

Medium priority
Needs evaluation

(Handshake messages, such as KeyUpdate, are always considered as state- ...)

16 affected packages

golang, golang-1.6, golang-1.8, golang-1.9, golang-1.10...

Package 26.04 LTS 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
golang Not in release Not in release Not in release
golang-1.6 Not in release Not in release Not in release
golang-1.8 Not in release Not in release Not in release Needs evaluation
golang-1.9 Not in release Not in release Not in release Needs evaluation
golang-1.10 Not in release Not in release Not in release Needs evaluation
golang-1.13 Not in release Not in release Needs evaluation Needs evaluation Needs evaluation
golang-1.14 Not in release Not in release Not in release Needs evaluation
golang-1.16 Not in release Not in release Not in release Needs evaluation Needs evaluation
golang-1.17 Not in release Not in release Needs evaluation
golang-1.18 Not in release Not in release Needs evaluation Needs evaluation Needs evaluation
golang-1.20 Not in release Not in release Needs evaluation Needs evaluation
golang-1.21 Not in release Needs evaluation Needs evaluation Needs evaluation
golang-1.22 Not in release Needs evaluation Needs evaluation Needs evaluation
golang-1.23 Needs evaluation Needs evaluation Needs evaluation
golang-1.24 Needs evaluation Needs evaluation Needs evaluation
golang-1.25 Needs evaluation Not in release Not in release
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CVE-2026-56860

Medium priority
Needs evaluation

(Previously, resolving relative paths containing parent directory ('..' ...)

16 affected packages

golang, golang-1.6, golang-1.8, golang-1.9, golang-1.10...

Package 26.04 LTS 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
golang Not in release Not in release Not in release
golang-1.6 Not in release Not in release Not in release
golang-1.8 Not in release Not in release Not in release Needs evaluation
golang-1.9 Not in release Not in release Not in release Needs evaluation
golang-1.10 Not in release Not in release Not in release Needs evaluation
golang-1.13 Not in release Not in release Needs evaluation Needs evaluation Needs evaluation
golang-1.14 Not in release Not in release Not in release Needs evaluation
golang-1.16 Not in release Not in release Not in release Needs evaluation Needs evaluation
golang-1.17 Not in release Not in release Needs evaluation
golang-1.18 Not in release Not in release Needs evaluation Needs evaluation Needs evaluation
golang-1.20 Not in release Not in release Needs evaluation Needs evaluation
golang-1.21 Not in release Needs evaluation Needs evaluation Needs evaluation
golang-1.22 Not in release Needs evaluation Needs evaluation Needs evaluation
golang-1.23 Needs evaluation Needs evaluation Needs evaluation
golang-1.24 Needs evaluation Needs evaluation Needs evaluation
golang-1.25 Needs evaluation Not in release Not in release
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CVE-2026-56859

Medium priority
Needs evaluation

(Previously, DecodeElement would reset the depth counter causing it to ...)

16 affected packages

golang, golang-1.6, golang-1.8, golang-1.9, golang-1.10...

Package 26.04 LTS 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
golang Not in release Not in release Not in release
golang-1.6 Not in release Not in release Not in release
golang-1.8 Not in release Not in release Not in release Needs evaluation
golang-1.9 Not in release Not in release Not in release Needs evaluation
golang-1.10 Not in release Not in release Not in release Needs evaluation
golang-1.13 Not in release Not in release Needs evaluation Needs evaluation Needs evaluation
golang-1.14 Not in release Not in release Not in release Needs evaluation
golang-1.16 Not in release Not in release Not in release Needs evaluation Needs evaluation
golang-1.17 Not in release Not in release Needs evaluation
golang-1.18 Not in release Not in release Needs evaluation Needs evaluation Needs evaluation
golang-1.20 Not in release Not in release Needs evaluation Needs evaluation
golang-1.21 Not in release Needs evaluation Needs evaluation Needs evaluation
golang-1.22 Not in release Needs evaluation Needs evaluation Needs evaluation
golang-1.23 Needs evaluation Needs evaluation Needs evaluation
golang-1.24 Needs evaluation Needs evaluation Needs evaluation
golang-1.25 Needs evaluation Not in release Not in release
Show all 16 packages Show less packages

CVE-2026-56858

Medium priority
Needs evaluation

(Previously, pathological inputs could close an unescaped '/' early, al ...)

16 affected packages

golang, golang-1.6, golang-1.8, golang-1.9, golang-1.10...

Package 26.04 LTS 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
golang Not in release Not in release Not in release
golang-1.6 Not in release Not in release Not in release
golang-1.8 Not in release Not in release Not in release Needs evaluation
golang-1.9 Not in release Not in release Not in release Needs evaluation
golang-1.10 Not in release Not in release Not in release Needs evaluation
golang-1.13 Not in release Not in release Needs evaluation Needs evaluation Needs evaluation
golang-1.14 Not in release Not in release Not in release Needs evaluation
golang-1.16 Not in release Not in release Not in release Needs evaluation Needs evaluation
golang-1.17 Not in release Not in release Needs evaluation
golang-1.18 Not in release Not in release Needs evaluation Needs evaluation Needs evaluation
golang-1.20 Not in release Not in release Needs evaluation Needs evaluation
golang-1.21 Not in release Needs evaluation Needs evaluation Needs evaluation
golang-1.22 Not in release Needs evaluation Needs evaluation Needs evaluation
golang-1.23 Needs evaluation Needs evaluation Needs evaluation
golang-1.24 Needs evaluation Needs evaluation Needs evaluation
golang-1.25 Needs evaluation Not in release Not in release
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CVE-2026-56853

Medium priority
Needs evaluation

(When a server is configured to support unencrypted HTTP/2, it reads a ...)

16 affected packages

golang, golang-1.6, golang-1.8, golang-1.9, golang-1.10...

Package 26.04 LTS 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
golang Not in release Not in release Not in release
golang-1.6 Not in release Not in release Not in release
golang-1.8 Not in release Not in release Not in release Needs evaluation
golang-1.9 Not in release Not in release Not in release Needs evaluation
golang-1.10 Not in release Not in release Not in release Needs evaluation
golang-1.13 Not in release Not in release Needs evaluation Needs evaluation Needs evaluation
golang-1.14 Not in release Not in release Not in release Needs evaluation
golang-1.16 Not in release Not in release Not in release Needs evaluation Needs evaluation
golang-1.17 Not in release Not in release Needs evaluation
golang-1.18 Not in release Not in release Needs evaluation Needs evaluation Needs evaluation
golang-1.20 Not in release Not in release Needs evaluation Needs evaluation
golang-1.21 Not in release Needs evaluation Needs evaluation Needs evaluation
golang-1.22 Not in release Needs evaluation Needs evaluation Needs evaluation
golang-1.23 Needs evaluation Needs evaluation Needs evaluation
golang-1.24 Needs evaluation Needs evaluation Needs evaluation
golang-1.25 Needs evaluation Not in release Not in release
Show all 16 packages Show less packages

CVE-2026-33818

Medium priority
Needs evaluation

(Enforce a recursion limit in Unmarshal to prevent stack exhaustion whe ...)

16 affected packages

golang, golang-1.6, golang-1.8, golang-1.9, golang-1.10...

Package 26.04 LTS 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
golang Not in release Not in release Not in release
golang-1.6 Not in release Not in release Not in release
golang-1.8 Not in release Not in release Not in release Needs evaluation
golang-1.9 Not in release Not in release Not in release Needs evaluation
golang-1.10 Not in release Not in release Not in release Needs evaluation
golang-1.13 Not in release Not in release Needs evaluation Needs evaluation Needs evaluation
golang-1.14 Not in release Not in release Not in release Needs evaluation
golang-1.16 Not in release Not in release Not in release Needs evaluation Needs evaluation
golang-1.17 Not in release Not in release Needs evaluation
golang-1.18 Not in release Not in release Needs evaluation Needs evaluation Needs evaluation
golang-1.20 Not in release Not in release Needs evaluation Needs evaluation
golang-1.21 Not in release Needs evaluation Needs evaluation Needs evaluation
golang-1.22 Not in release Needs evaluation Needs evaluation Needs evaluation
golang-1.23 Needs evaluation Needs evaluation Needs evaluation
golang-1.24 Needs evaluation Needs evaluation Needs evaluation
golang-1.25 Needs evaluation Not in release Not in release
Show all 16 packages Show less packages

CVE-2026-42505

Medium priority
Needs evaluation

Handshakes which used Encrypted Client Hello could be de-anonymized by a passive network observer due to a disclosure of pre-shared key identities in the unencrypted client hello.

16 affected packages

golang, golang-1.6, golang-1.8, golang-1.9, golang-1.10...

Package 26.04 LTS 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
golang Not in release Not in release Not in release
golang-1.6 Not in release Not in release Not in release
golang-1.8 Not in release Not in release Not in release Needs evaluation
golang-1.9 Not in release Not in release Not in release Needs evaluation
golang-1.10 Not in release Not in release Not in release Needs evaluation
golang-1.13 Not in release Not in release Needs evaluation Needs evaluation Needs evaluation
golang-1.14 Not in release Not in release Not in release Needs evaluation
golang-1.16 Not in release Not in release Not in release Needs evaluation Needs evaluation
golang-1.17 Not in release Not in release Needs evaluation
golang-1.18 Not in release Not in release Needs evaluation Needs evaluation Needs evaluation
golang-1.20 Not in release Not in release Needs evaluation Needs evaluation
golang-1.21 Not in release Needs evaluation Needs evaluation Needs evaluation
golang-1.22 Not in release Needs evaluation Needs evaluation Needs evaluation
golang-1.23 Needs evaluation Needs evaluation Needs evaluation
golang-1.24 Needs evaluation Needs evaluation Needs evaluation
golang-1.25 Needs evaluation Not in release Not in release
Show all 16 packages Show less packages

CVE-2026-39822

Medium priority
Needs evaluation

On 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 path is a symbolic link and the path ends in /. For example, 'root.Open("symlink/")'...

16 affected packages

golang, golang-1.6, golang-1.8, golang-1.9, golang-1.10...

Package 26.04 LTS 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
golang Not in release Not in release Not in release
golang-1.6 Not in release Not in release Not in release
golang-1.8 Not in release Not in release Not in release Needs evaluation
golang-1.9 Not in release Not in release Not in release Needs evaluation
golang-1.10 Not in release Not in release Not in release Needs evaluation
golang-1.13 Not in release Not in release Needs evaluation Needs evaluation Needs evaluation
golang-1.14 Not in release Not in release Not in release Needs evaluation
golang-1.16 Not in release Not in release Not in release Needs evaluation Needs evaluation
golang-1.17 Not in release Not in release Needs evaluation
golang-1.18 Not in release Not in release Needs evaluation Needs evaluation Needs evaluation
golang-1.20 Not in release Not in release Needs evaluation Needs evaluation
golang-1.21 Not in release Needs evaluation Needs evaluation Needs evaluation
golang-1.22 Not in release Needs evaluation Needs evaluation Needs evaluation
golang-1.23 Needs evaluation Needs evaluation Needs evaluation
golang-1.24 Needs evaluation Needs evaluation Needs evaluation
golang-1.25 Needs evaluation Not in release Not in release
Show all 16 packages Show less packages