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Response snapshot Oct 30, 2026, 23:06 UTC

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VulnerabilityGHSA-5xjx-3w67-w9x9

pypi-publish action revocation of CA in the chain that Sigstore uses in Trusted Publishing and Digital Attestations for PyPI

The [pypi-publish action][pypi-publish] versions before 1.14.2 used to bundle the emSign root CA trust store certificate through the certifi distribution. It has since been removed through the bundle and the new version no longer includes them. [pypi-publish]: https://github.

At a glance

Exploited
Not known
Severity
Not scored yet
Chance of exploitation
Not estimated
Sources
1 source

What to do

GitHub lists first patched versions: pypa/gh-action-pypi-publish: 1.14.3. Confirm the affected range and upgrade guidance in the exact advisory.

Read GitHub-reviewed advisory GHSA-5xjx-3w67-w9x9 (opens a new tab)

What happened

Summary

The [pypi-publish action][pypi-publish] versions before 1.14.2 used to bundle the emSign root CA trust store certificate through the certifi distribution. It has since been removed through the bundle and the new version no longer includes them.

[pypi-publish]: https://github.com/marketplace/actions/pypi-publish

Details

Continue reading

The certifi-provided TLS trust store is typically used by many projects in the Python ecosystem, including Sigstore that [pypi-publish] relies on for Trusted Publishing and Digital Attestations.

Related

The external compromise is being tracked at https://emudhra.we-have-a-problem.com

Affected package ranges reported by GitHub: pypa/gh-action-pypi-publish: <= 1.14.2

Related technology

Sources

  1. Primary source

    GitHub-reviewed advisory GHSA-5xjx-3w67-w9x9 (opens a new tab)

    The public advisory supplies the description, affected package/version ranges, and any listed CVSS metric. GitHub review is not local review.

    Published Checked

  2. Primary source

    GitHub public advisory API page (opens a new tab)

    The API page supplied GHSA-5xjx-3w67-w9x9, its actual identifiers, source dates, and structured metrics.

    Published Date not suppliedChecked

Cite this record

For factual claims, cite the primary sources above; cite KEVWire for its compilation, dates, and classifications.

APA

KEVWire. (2026, October 30). pypi-publish action revocation of CA in the chain that Sigstore uses in Trusted Publishing and Digital Attestations for PyPI. https://kevwire.com/record/GHSA-5xjx-3w67-w9x9

MLA

"pypi-publish action revocation of CA in the chain that Sigstore uses in Trusted Publishing and Digital Attestations for PyPI." KEVWire, 30 Oct. 2026, kevwire.com/record/GHSA-5xjx-3w67-w9x9.

Chicago

KEVWire. "pypi-publish action revocation of CA in the chain that Sigstore uses in Trusted Publishing and Digital Attestations for PyPI." Last modified October 30, 2026. https://kevwire.com/record/GHSA-5xjx-3w67-w9x9.

Evidence summary (plain text)

pypi-publish action revocation of CA in the chain that Sigstore uses in Trusted Publishing and Digital Attestations for PyPI (Oct 30, 2026).
The [pypi-publish action][pypi-publish] versions before 1.14.2 used to bundle the emSign root CA trust store certificate through the certifi distribution. It has since been removed through the bundle and the new version no longer includes them.

[pypi-publish]: https://github.com/marketplace/actions/pypi-publish

The certifi-provided TLS trust store is typically used by many projects in the Python ecosystem, including Sigstore that [pypi-publish] relies on for Trusted Publishing and Digital Attestations.

The external compromise is being tracked at https://emudhra.we-have-a-problem.com
Sources:
GitHub-reviewed advisory GHSA-5xjx-3w67-w9x9: https://github.com/advisories/GHSA-5xjx-3w67-w9x9
GitHub public advisory API page: https://api.github.com/advisories?type=reviewed&per_page=100&sort=updated&direction=desc
Record ID: GHSA-5xjx-3w67-w9x9.
Record origin: Ingested record.
AI evidence: Not assessed.
Known exploitation: Not assessed.
Zero-day status: Not assessed. KEV membership alone does not establish zero-day status.
About this data

This record was ingested from a data source. Retrieved: Oct 30, 2026, 23:05 UTC. Ingestion is not an independent editorial investigation.

A CISA KEV listing documents known exploitation, not necessarily a zero-day; absence from the catalog does not prove a vulnerability has never been exploited.

Technology tags indicate possible relevance, not verified exposure. Confirm the affected product, version, and configuration against your own inventory; KEVWire does not scan your systems.

A personal reading checklist on this device, not verified remediation.

Record JSON

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Record details

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