CVE catalog

CVE-2026-56855

golang-go.crypto: CVE-2026-56855

[CVE catalog]

Severity
High · CVSS 7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Published
Source
[NVD] · [CVE record]
EPSS
0.50% · Oct 25, 2026

Previously, after a channel has been established, a malicious peer could send crafted messages that would deadlock the entire connection. Now, we handle all RFC 4254 channel messages; global requests are handled explicitly. Then, treat all other messages as a protocol error and tear the connection down instead of buffering and blocking.

Vulnerable and fixed packages

Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.

DistributionPackageReleaseVersionStatus
Debiangolang-go.cryptosid1:0.58.0-1fixed
Debiangolang-go.cryptoforky1:0.58.0-1fixed
Debiangolang-go.cryptotrixie1:0.25.0-1vulnerable
Debiangolang-go.cryptobookworm1:0.4.0-1vulnerable
Gogolang.org/x/cryptoNot reported0.56.0fixed
CpecryptoNot reported0.56.0fixed
Opensusegrafanatumbleweed12.4.11-1.1fixed
Opensusehelmtumbleweed4.3.0-1.1fixed
Opensusegitea-teatumbleweed0.16.0-1.1fixed
Opensusegit-bugtumbleweed0.10.1-7.1fixed
Opensusekeybase-clienttumbleweed6.6.3-4.1fixed
Opensuseghtumbleweed2.100.0-1.1fixed
Opensusetrivytumbleweed0.74.0-3.1fixed
Opensusehaulertumbleweed2.1.0-2.1fixed

Fixed-version evidence

DistributionPackageTypeReleaseFixed versionUrgencyOriginBugs
Debiangolang-go.cryptosourcesid1:0.56.0-1not yet assignedNot reportedNot reported
Debiangolang-go.cryptosourceforky1:0.56.0-1not yet assignedNot reportedNot reported
Debiangolang-go.cryptosourcetrixie(unfixed)not yet assignedNot reportedNot reported
Debiangolang-go.cryptosourcebookworm(unfixed)not yet assignedNot reportedNot reported
Gogolang.org/x/cryptoGoNot reported0.56.0Not reportedGO-2026-6355Not reported
CpecryptocpeNot reported0.56.0Not reportedNVD-CVE-2026-56855Not reported
Opensusegrafanarpmtumbleweed12.4.11-1.1Not reportedOPENSUSE-SU-2026:11920-1Not reported
Opensusehelmrpmtumbleweed4.3.0-1.1Not reportedOPENSUSE-SU-2026:11820-1Not reported
Opensusegitea-tearpmtumbleweed0.16.0-1.1Not reportedOPENSUSE-SU-2026:11772-1Not reported
Opensusegit-bugrpmtumbleweed0.10.1-7.1Not reportedOPENSUSE-SU-2026:11717-1Not reported
Opensusekeybase-clientrpmtumbleweed6.6.3-4.1Not reportedOPENSUSE-SU-2026:11704-1Not reported
Opensuseghrpmtumbleweed2.100.0-1.1Not reportedOPENSUSE-SU-2026:11698-1Not reported
Opensusetrivyrpmtumbleweed0.74.0-3.1Not reportedOPENSUSE-SU-2026:11691-1Not reported
Opensusehaulerrpmtumbleweed2.1.0-2.1Not reportedOPENSUSE-SU-2026:11685-1Not reported

Notes

[trixie] golang-go.crypto: Minor issue [bookworm] golang-go.crypto: Limited support

OpenFactory catalog packages

[Debian 12 (Bookworm)]

  • [golang-golang-x-crypto-dev]Affected

    Source package: [golang-go.crypto]

    Details (4)

    • 1:0.4.0-1 · all · bookworm

      Affected

      dsa · golang-go.crypto · debian · bookworm; dsa · golang-go.crypto · debian · 12

    • 1:0.4.0-1 · all · bookworm

      Affected

      dsa · golang-go.crypto · debian · bookworm; dsa · golang-go.crypto · debian · 12

    • 1:0.25.0-1~bpo12+1 · all · bookworm-backports

      Affected

      dsa · golang-go.crypto · debian · bookworm; dsa · golang-go.crypto · debian · 12

    • 1:0.25.0-1~bpo12+1 · all · bookworm-backports

      Affected

      dsa · golang-go.crypto · debian · bookworm; dsa · golang-go.crypto · debian · 12

[Debian 13 (Trixie)]

  • [golang-golang-x-crypto-dev]Affected

    Source package: [golang-go.crypto]

    Details (4)

    • 1:0.25.0-1 · all · trixie

      Affected

      dsa · golang-go.crypto · debian · 13

    • 1:0.25.0-1 · all · trixie

      Affected

      dsa · golang-go.crypto · debian · 13

    • 1:0.52.0-1~bpo13+1 · all · trixie-backports

      Affected

      dsa · golang-go.crypto · debian · 13

    • 1:0.52.0-1~bpo13+1 · all · trixie-backports

      Affected

      dsa · golang-go.crypto · debian · 13

[openSUSE Tumbleweed]

  • [gh]Affected

    Source package: [gh]

    Details (1)

    • 2.98.0-1.1 · x86_64 · tumbleweed

      Affected · Fixed: 2.100.0-1.1

      dsa · gh · opensuse · tumbleweed

  • [git-bug]Affected

    Source package: [git-bug]

    Details (1)

    • 0.10.1-6.3 · x86_64 · tumbleweed

      Affected · Fixed: 0.10.1-7.1

      dsa · git-bug · opensuse · tumbleweed

  • [gitea-tea]Affected

    Source package: [gitea-tea]

    Details (1)

    • 0.15.1-1.1 · x86_64 · tumbleweed

      Affected · Fixed: 0.16.0-1.1

      dsa · gitea-tea · opensuse · tumbleweed

  • [grafana]Affected

    Source package: [grafana]

    Details (1)

    • 12.4.5-4.1 · x86_64 · tumbleweed

      Affected · Fixed: 12.4.11-1.1

      dsa · grafana · opensuse · tumbleweed

  • [hauler]Affected

    Source package: [hauler]

    Details (1)

    • 2.0.3-1.1 · x86_64 · tumbleweed

      Affected · Fixed: 2.1.0-2.1

      dsa · hauler · opensuse · tumbleweed

  • [helm]Affected

    Source package: [helm]

    Details (1)

    • 4.2.4-1.1 · x86_64 · tumbleweed

      Affected · Fixed: 4.3.0-1.1

      dsa · helm · opensuse · tumbleweed

  • [keybase-client]Affected

    Source package: [keybase-client]

    Details (1)

    • 6.6.3-3.2 · x86_64 · tumbleweed

      Affected · Fixed: 6.6.3-4.1

      dsa · keybase-client · opensuse · tumbleweed

  • [trivy]Affected

    Source package: [trivy]

    Details (1)

    • 0.74.0-1.1 · x86_64 · tumbleweed

      Affected · Fixed: 0.74.0-3.1

      dsa · trivy · opensuse · tumbleweed

  • [gh-bash-completion]Unknown

    Source package: [gh]

    Details (1)

    • 2.98.0-1.1 · noarch · tumbleweed

      Unknown · Fixed: 2.100.0-1.1

      Version impact unknown

      dsa · gh · opensuse · tumbleweed

  • [gh-fish-completion]Unknown

    Source package: [gh]

    Details (1)

    • 2.98.0-1.1 · noarch · tumbleweed

      Unknown · Fixed: 2.100.0-1.1

      Version impact unknown

      dsa · gh · opensuse · tumbleweed

  • [gh-zsh-completion]Unknown

    Source package: [gh]

    Details (1)

    • 2.98.0-1.1 · noarch · tumbleweed

      Unknown · Fixed: 2.100.0-1.1

      Version impact unknown

      dsa · gh · opensuse · tumbleweed

  • [git-bug-bash-completion]Unknown

    Source package: [git-bug]

    Details (1)

    • 0.10.1-6.3 · noarch · tumbleweed

      Unknown · Fixed: 0.10.1-7.1

      Version impact unknown

      dsa · git-bug · opensuse · tumbleweed

  • [git-bug-fish-completion]Unknown

    Source package: [git-bug]

    Details (1)

    • 0.10.1-6.3 · noarch · tumbleweed

      Unknown · Fixed: 0.10.1-7.1

      Version impact unknown

      dsa · git-bug · opensuse · tumbleweed

  • [git-bug-zsh-completion]Unknown

    Source package: [git-bug]

    Details (1)

    • 0.10.1-6.3 · noarch · tumbleweed

      Unknown · Fixed: 0.10.1-7.1

      Version impact unknown

      dsa · git-bug · opensuse · tumbleweed

  • [gitea-tea-bash-completion]Unknown

    Source package: [gitea-tea]

    Details (1)

    • 0.15.1-1.1 · noarch · tumbleweed

      Unknown · Fixed: 0.16.0-1.1

      Version impact unknown

      dsa · gitea-tea · opensuse · tumbleweed

  • [gitea-tea-zsh-completion]Unknown

    Source package: [gitea-tea]

    Details (1)

    • 0.15.1-1.1 · noarch · tumbleweed

      Unknown · Fixed: 0.16.0-1.1

      Version impact unknown

      dsa · gitea-tea · opensuse · tumbleweed

  • [helm-bash-completion]Unknown

    Source package: [helm]

    Details (1)

    • 4.2.4-1.1 · noarch · tumbleweed

      Unknown · Fixed: 4.3.0-1.1

      Version impact unknown

      dsa · helm · opensuse · tumbleweed

  • [helm-fish-completion]Unknown

    Source package: [helm]

    Details (1)

    • 4.2.4-1.1 · noarch · tumbleweed

      Unknown · Fixed: 4.3.0-1.1

      Version impact unknown

      dsa · helm · opensuse · tumbleweed

Next results

Observed:

References

[Debian Security Tracker] · [FIRST EPSS] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX]