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CVE-2026-86473

INDEX BUILT · 2026-10-18

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Apache Airflow: Logout ignores a presented Authorization bearer token, leaving it revocable only by expiry

CVE-2026-864734 of 4 sources documented this
2

rank 2 = 0 + 0 + 0 + 2 + 0

rank@v1 · backlog

Someone is already using it

CISA KEV catalog · public proof-of-concept · FIRST EPSS

EPSS 0.00747  ·  without this subject the record ranks 2

What it costs you if it fires

NVD CVSS base score, then the CNA's own

no CVSS held by anyone  ·  without this subject the record ranks 2

It is getting worse, not staying still

FIRST EPSS series, rescorings and bad loads removed

no persisting rise in 365 days  ·  without this subject the record ranks 2

How much of the world it touches

NVD CPE configurations

1 product in the CPE ranges  ·  without this subject the record ranks 0

Someone else already set the date

CISA KEV remediation due date

no CISA due date  ·  without this subject the record ranks 2

Hindsight · the state

0.00747EPSSNOT IN KEVas of 2026-10-18
Severitynot scored
Harmnot stated
Exploitationnone in held sources
Defensefix version namedreceipt
Movementone observationreceipt
SINGLE READINGOne observation held. There is no shape yet. arc-rules@v1

Foresight · where to check next

No weakness class or product neighbourhood is held for this record, so this index cannot name anywhere to check next. That is an absence in the record, not a finding about the software.

Color is a claim, not decoration:the hostile worldthe defenseno signal

Running Apache Airflow? Check your version

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What counts as a move

Watch Apache Airflow

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Patch by…

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Harm, if it fires from the vector and the weakness

Written for the ticket you're about to file.

ReachNo CVSS vector in held sources, so no reach or impact can be stated.
Weakness classCWE-613 Insufficient Session Expirationreceipt
Published consequencesCWE-613: Access Control: Bypass Protection Mechanismcwe-consequences@4.20

CISA KEV & Federal Remediation Deadline from the record and CISA

The fix, and how long it's been waiting.

Fixed in3.3.2receipt
Patch available sinceNo dated patch-availability record in held sources. The index holds reference URLs without dates and only the current revision of the CVE record, so the day a fix first existed cannot be derived. Only the versions it landed in.
BOD 26-04 deadlineIf the system is reachable from the internet: 14 days. If not: fix at the next system upgrade.derived
Show full BOD 26-04 deadline

CISA has not scored it, so the directive's own defaults apply: automatable no, technical impact total. Calendar days from the KEV listing or from when you find it on a system, whichever is first. Federal agencies are bound from 7 Dec 2026, and contracts often carry it to suppliers. The directive and its table

Exploit Status & Known PoCs a ladder, not a score

Current rung: Nothing observed in held sources.

  • RUNG 1Nothing observed in held sources
  • RUNG 2Proof-of-concept published
  • RUNG 3Exploited in the wild · CISA KEV listed
  • RUNG 4Ransomware campaign use known

Authority who says so

Exploit probability0.00747 · top 46% of all CVEsreceipt
Blast breadth1 product across 1 vendorderived
Assigned byapachereceipt
Recorded changes1 · last 18 Oct 2026derived

Affected & Fixed Versions as published

Affected productApache Software Foundation Apache Airflowreceipt
Published rangesapache airflow >= 3.0.0 < 3.3.2receipt
Fixed in3.3.2receipt

A rung lights from a row in the index, never from an assessment. "Held sources" is the true scope of the claim: this index reads the CVE record, NVD, CISA KEV, FIRST's EPSS and public proof-of-concept repositories, and it does not observe attacks.

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What it is stated by the CNA

Apache Airflow: the Core API logout endpoint revokes only a session token presented as the _token cookie. When a client logs out presenting its credential as an Authorization bearer header instead, the endpoint returns its normal logout response but revokes nothing, so the token remains valid until it expires. An attacker who already holds a copy of that token keeps the victim's access after the victim has logged out and believes the session ended; the default token lifetime is 24 hours and is configurable. Affects API clients that authenticate with a bearer token rather than the browser session cookie. receipt

Read the rest of the CNA's description

The attacker must already possess a copy of a valid token; obtaining one is outside the scope of this issue, and no privileges beyond the victim's own are gained. Users of apache-airflow are recommended to upgrade to apache-airflow version 3.3.2 or later, which fixes the issue.

NVD's analysis a second authority

weakness
CWE-613
affected versions
apache airflow >= 3.0.0 < 3.3.2
also scored by
9.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

check it yourself github.com lists.apache.org receipt

Movement

Only one observation of this value is held, so there is no movement to show yet.

The full biography

Published2026-09-21Index as of2026-09-28

The record had been public for 7 days when this index was last written.

Published 2026-09-21 receipt · Index as of 2026-09-28 derived

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