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VulnerabilityPublished

pypa/gh-action-pypi-publish · Gh action pypi publish: pypi-publish action revocation of CA in the chain that Sigstore uses in Trusted Publishing and

Affects pypa/gh-action-pypi-publishSource GCVE Database

0

CVSS 9.3 Critical : upgrade to 1.14.3 as a priority.

Data as of 30 Oct 2026, 21:37 UTC

CVSS 4.0 base score
9.3Critical
How severe the flaw is on the 0–10 CVSS scale.
Patch
Available – fixed in 1.14.3
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N

What to do

Upgrade pypa/gh-action-pypi-publish to 1.14.3.

Affected software

ProductAffectedFixed in
GitHubpypa/gh-action-pypi-publishAffected
  • <1.14.3
Fixed in
  • 1.14.3

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AI-suggested

Upgrade pypi-publish to version 1.14.3 or later, where the revoked emSign root CA certificate has been removed from the trust store. This official fix resolves the vulnerability. No additional action is required beyond applying this update.

Description

The pypi-publish GitHub Action versions before 1.14.3 included the emSign root CA certificate via the certifi bundle, which has since been removed. This change affects the TLS trust store used by Sigstore for Trusted Publishing and Digital Attestations. The vulnerability is tracked due to the revocation of this CA in the chain that Sigstore relies on. A fix is available in version 1.14.3.

References

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