CVE-2026-113508

Apache Airflow: Logout token revocation fails open; errors silently swallowed

Products / packages Apache Software Foundation Apache Airflow

Published 09/11/2026, 09:46:14 UTC

Severity and exploitation

Not in CISA KEV

KEV coverage does not rule out exploitation.

KEV checked 15/11/2026, 00:10:33 UTC

CISA-ADP · CVSS:3.1 · 7.5

Assessment vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Severity

high7.5

CVSS measures technical severity, not the likelihood of an attack.

Known exploitation

Not listed in the checked CISA KEV catalog

Absence from CISA KEV does not rule out attacks.

Public exploit

Not established by this record

Missing evidence does not mean no public exploit exists.

Remediation

Fix status not established

No structured fix or guidance is available here. Check the latest publisher advisory.

What this means

Apache Airflow's logout endpoint fails to revoke tokens on server-side errors, allowing token reuse until expiration. Affected versions are prior to 3.4.0. An attacker with a user's token can keep using it against the Airflow API.

Summarized by @cf/meta/llama-3.3-70b-instruct-fp8-fast. Verify details against the original sources.

Attack conditions

No attack-condition excerpt has been identified here. Review the full source description and references for authentication, network access, and configuration requirements.

Review supporting sources →

Affected versions

Check the exact model, release, and any platform requirements against your installation.

Apache Software Foundation · apache

Apache Airflow

1 range

apache version evidence

Package identity

pkg:pypi/apache-airflow-coreExplore apache-airflow-core →

Identity supplied by apache. Version matching requires compatible range evidence.

Check a product version

Compare with this publisher’s ranges. This does not inspect your installation.

affected

0 → before 3.4.0

semver versions

Other versions: unaffected

Automatic dependency matching is unavailable for this record. Use the product evidence and publisher’s instructions to check your installation.

What to do

Compare your installed product and version with the affected versions above. A matching product name alone does not confirm exposure.

No structured fix or remediation guidance is available here. Check the full source description and vendor’s latest advisory for a patch or workaround; do not assume another version is safe.

cve.new guidance unless attributed to a publisher. This page does not inspect your installation.

Public exploit evidence

No public exploit reference is identified in the imported evidence. This is not a claim that no exploit exists.

Original source description

Read the full publisher description

Apache Airflow's logout endpoint attempted to revoke the presented token on the server, but any failure during revocation was silently ignored and logout still reported success. When the auth manager redirects logout to an external logout URL (for example the FAB or Keycloak auth managers), server-side revocation is the only thing that invalidates the Airflow token; it failed on database errors and, reliably, for tokens from an external issuer accepted via [api_auth] trusted_jwks_url whose token identifier is longer than 32 characters. Anyone holding a copy of a user's token from before logout could keep using it against the Airflow API until it expired. Users are advised to upgrade to apache-airflow 3.4.0 or later.

References

4 sources

apache/airflow · pull request #73562

Patchapache

apache/airflow · pull request #73788

Patchapache

lists.apache.org/thread.html/6t892ozodb9f3498jrsc8k0crbdnm7no

Vendor advisoryapache

www.openwall.com/lists/oss-security/2026/11/09/20

Security advisoryCVE

Inside the record

Evidence available

Package identity

Version evidence

Remediation guidance · not supplied

Weakness classification

Additional publishers

Describes the evidence in this view, not whether the product is safe.

Original records

CVE-2026-113508

View the latest unmodified CVE JSON from the official source. It may be newer than this imported page.

cve.new JSON →

Underlying weaknesses

The source’s classification of what caused the vulnerability.

CWE-613 ↗

CWE-613: Insufficient Session Expiration

apache

Contributing organizations · 3

apache

Assigning organization

2026-11-09

CVE

Additional data publisher

2026-11-09

CISA-ADP

Additional data publisher

2026-11-12

Timeline

All times UTC

9 Nov 2026, 09:46
Advisory published
Publication date supplied by the source.
12 Nov 2026, 16:14
Source updated
Latest modification date supplied by the source.
12 Nov 2026, 23:58
Last imported by cve.new
Latest catalog import, not the date we first saw this advisory.

What changed

Follow changes

CVE · CVE-2026-1135082026-11-12

Observed 2026-11-12T23:58:11.071Z · upstream updated 2026-11-12T16:14:09.433Z

Severity assessment changed

before

[]

after

[
  {
    "source": "CISA-ADP",
    "vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
    "score": 7.5
  }
]

Prioritization updated

before

[]

after

[
  {
    "source": "CISA-ADP",
    "type": "SSVC",
    "role": "CISA Coordinator",
    "timestamp": "2026-11-12T16:14:04.407450Z",
    "decisions": [
      {
        "name": "Exploitation",
        "value": "none"
      },
      {
        "name": "Automatable",
        "value": "yes"
      },
      {
        "name": "Technical Impact",
        "value": "partial"
      }
    ]
  }
]

CVE · CVE-2026-1135082026-11-09

Observed 2026-11-09T10:21:24.342Z · upstream updated 2026-11-09T10:09:46.244Z

References changed

before

[
  "https://github.com/apache/airflow/pull/73562",
  "https://github.com/apache/airflow/pull/73788",
  "https://lists.apache.org/thread.html/6t892ozodb9f3498jrsc8k0crbdnm7no"
]

after

[
  "https://github.com/apache/airflow/pull/73562",
  "https://github.com/apache/airflow/pull/73788",
  "https://lists.apache.org/thread.html/6t892ozodb9f3498jrsc8k0crbdnm7no",
  "http://www.openwall.com/lists/oss-security/2026/11/09/20"
]

Large field values are marked as truncated previews. Original source snapshots remain retained.

Showing up to 50 most recent observed changes.

Reading the signals

Severity · CVSS: Technical impact and attack conditions. The headline is the highest imported catalog score; sources may disagree.
Observed exploitation · KEV: An absent or unavailable KEV listing does not establish that exploitation has not occurred.
Predicted exploitation · EPSS: No EPSS estimate available in this record.

CISA-ADP · SSVC

CISA Coordinator · 2026-11-12

Exploitation: none
Automatable: yes
Technical Impact: partial

SSVC describes the publisher’s decision context. Your organization’s exposure and priorities may differ.

Record identifiers

Aliases: None recorded

Source evidence

Request a correction or dispute

Start with the assigning organization for this record. Include the CVE ID, the disputed information, and supporting evidence. A dispute does not itself reject a record.

Find the responsible CNA →Official dispute and escalation process ↗

CVE CVE-2026-113508

Enrichment coverage

NVDNo result

Checked 09/11/2026, 09:55:31 UTC

GHSANo result

Checked 09/11/2026, 09:55:31 UTC

EUVDNo result

Checked 09/11/2026, 09:55:31 UTC

EPSSNo result

Checked 09/11/2026, 09:55:31 UTC

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Apache Airflow: Logout token revocation fails open; errors silently swallowed

Severity and exploitation

What this means

Attack conditions

Affected versions

Apache Airflow

affected

unaffected

unknown

What to do

Public exploit evidence

Original source description

References

Inside the record

Evidence available

Original records

Underlying weaknesses

Timeline

Advisory published

Source updated

Last imported by cve.new

What changed