CVE-2026-35172: Distribution is a toolkit to pack, ship, store, and deliver container content

Q: How do I fix CVE-2026-35172?

distribution: upgrade to 3.1.0. Exact commands for each OS are on this page.

Q: Is CVE-2026-35172 being exploited?

CVE-2026-35172 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2026-35172 affect?

CVE-2026-35172 affects distribution. Severity is high (CVSS 7.5). Distribution is a toolkit to pack, ship, store, and deliver container content. Prior to 3.1.0, distribution can restore read access in repo a after an explicit delete when storage.cache.blobdescriptor: redis and storage.delete.enabled: true

Q: How urgent is CVE-2026-35172?

Priority 46/100. High severity; Public exploit reference; Remotely exploitable, no login, no user action

This week

HIGH 7.5REMOTEUPGRADE

CVE-2026-35172 is a high-severity flaw (CVSS 7.5) affecting distribution. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Distribution is a toolkit to pack, ship, store, and deliver container content. Prior to 3.1.0, distribution can restore read access in repo a after an explicit delete when storage.cache.blobdescriptor: redis and storage.delete.enabled: true are both enabled. The delete path clears the shared digest descriptor but leaves stale repo-scoped membership behind, so a later Stat or Get from repo b repopulates the shared descriptor and makes the deleted

Why this priority

High severity
Public exploit reference
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	7.5 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.5% (top 61%)
CISA exploited list	No
Weakness	CWE-284, CWE-524
Published	2026-04-06
Last modified	2026-09-09

Publisher (CNA): GitHub, Inc. · Vendor: distribution

Last updated 2026-09-09 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-04-06 20:16 UTCPublished CVE record published
2026-09-09 13:19 UTCUpdated Record last modified

distribution distribution UPGRADE

Affected: < 3.1.0

Fixed in: 3.1.0

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy distribution || rpm -q distribution || distribution --version

2. UPGRADE to 3.1.0 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade distribution

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade distribution

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-35172?

distribution: upgrade to 3.1.0. Exact commands for each OS are on this page.

Is CVE-2026-35172 being exploited?

CVE-2026-35172 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-35172 affect?

CVE-2026-35172 affects distribution. Severity is high (CVSS 7.5). Distribution is a toolkit to pack, ship, store, and deliver container content. Prior to 3.1.0, distribution can restore read access in repo a after an explicit delete when storage.cache.blobdescriptor: redis and storage.delete.enabled: true

How urgent is CVE-2026-35172?

Priority 46/100. High severity; Public exploit reference; Remotely exploitable, no login, no user action

Software pages

Redis vulnerabilities

Related CVEs

CVE-2026-41888 MEDIUM 6.5 UPGRADE Distribution is a toolkit to pack, ship, store, and deliver container content
CVE-2026-33540 HIGH 7.5 UPGRADE Distribution is a toolkit to pack, ship, store, and deliver container content

References

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