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Vulnerabilities

Vulnerability · CVE-2026-45426

Exploitation requires the attacker to already be an authenticated Airflow worker holding a valid Log-server JWT issued for at least one Dag.

Published Jun 1, 2026 · catalog updated Jul 21, 2026 · Exploitation requires the attacker

Check if you run it

No confirmed exploitation is on record for CVE-2026-45426. EPSS is 0.52%. Act only if a listed version of Exploitation requires the attacker is installed.

Gaps on this record

  • The stored product name is a package slug. The name on this page is taken from the title (Exploitation requires the attacker).
  • No version range is stored. A customer cannot check an installed version against this record.
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
Low3.1
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.52%
Remediation
Advisory link
Affected products
cpe apache/airflow

Exploitation requires the attacker to already be an authenticated Airflow worker holding a valid Log-server JWT issued for at least one Dag. Apache Airflow's Log server authorized JWT tokens against Dag IDs by applying Python's to the requested path segment when verifying the JWT's claim. strips any of a *set* of characters from the left (not a prefix), so a JWT issued for a Dag named e.g. would authorize log access to any other Dag whose name began with any subset of the characters (e.g. , , ). Such an authenticated worker could enumerate and read worker logs of other Dags whose names happened to share that character-class prefix, leaking task output and error traces beyond the documented per-Dag isolation boundary. Affects deployments relying on per-Dag log-access scoping (multi-team, shared-executor, shared-worker topologies). Users are advised to upgrade to 3.2.2 or later.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • cpe apache/airflowversion unspecified

How to fix CVE-2026-45426

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2026-45426. EPSS is 0.52%. Act only if a listed version of Exploitation requires the attacker is installed.

Which versions are affected?

Affected version ranges are not on this record. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-863: Incorrect Authorization. EPSS 0.52%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. Jun 1, 2026 · NIST NVD

    Detected

    Exploitation requires the attacker to already be an authenticated Airflow worker holding a valid Log-server JWT issued for at least one Dag. Apache Airflow's Log server authorized JWT tokens against Dag IDs by applying Python's to the requested path segment when verifying the JWT's claim. strips any of a *set* of characters from the left (not a prefix), so a JWT issued for a Dag named e.g. would a

  2. Jul 21, 2026 · NIST NVD

    Updated

    Exploitation requires the attacker to already be an authenticated Airflow worker holding a valid Log-server JWT issued for at least one Dag. Apache Airflow's Log server authorized JWT tokens against Dag IDs by applying Python's to the requested path segment when verifying the JWT's claim. strips any of a *set* of characters from the left (not a prefix), so a JWT issued for a Dag named e.g. would a

Sources

  • CVE.orgVulnerability recordCVE-2026-45426

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2026-45426

    30-day exploitation probability 0.5%

    first.org
  • NIST NVDVulnerability recordCVE-2026-45426

    Exploitation requires the attacker to already be an authenticated Airflow worker holding a valid Log-server JWT issued for at least one Dag. Apache Airflow's Log server authorized JWT tokens against Dag IDs by applying Python's to the requested path segment when ve

    nvd.nist.gov

References

Freshness

Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.