CVE-2026-86463

highpriority · track · 0EPSS 0.004 · 39 %ileDEFRUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

0.45% (39th) EPSS

CVSS 7.5 · high

Is it mine?

9 products

Check your exposure

Who says so?

3 sources

cert_bund · nvd · certfr

EPSS · scored 2026-10-27

Apache CXF's FIQL query parser has a vulnerability in how it searches for operators in query expressions. The search pattern can get stuck trying many combinations when it encounters a long string without an operator, causing the parser to consume excessive CPU time. An attacker can send a crafted query to make the server use up CPU resources, potentially slowing down or stopping other requests. The fix was to limit FIQL expressions to 4 KiB by default, preventing attackers from sending extremely long inputs while still allowing normal queries. Users are recommended to upgrade to versions 4.2.4 or 4.1.9 or 3.6.13, which fix this issue.

cvss

Technical severity, 0–10. One row per scoring source.

7.5

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 6.9–7.5

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hsecondaryexploitability 3.9 · impact 3.6

v3.16.9mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:Usecondary · CVSS-BT (t0sche)

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Trackcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-400US

affected products (9)

Products and version ranges known to be affected.

Apache Apache CXF <3.6.13< 3.6.13cert_bundDE
Apache Apache CXF <4.1.9< 4.1.9cert_bundDE
Apache Apache CXF <4.2.4< 4.2.4cert_bundDE
Apache CXF< 3.6.13cert_bundDE
Apache CXF< 4.1.9cert_bundDE
Apache CXF< 4.2.4cert_bundDE
apache cxf< 3.6.13nvdUScpe:2.3:a:apache:cxf:*:*:*:*:*:*:*:*
apache cxf4.0.0 → 4.1.9nvdUScpe:2.3:a:apache:cxf:*:*:*:*:*:*:*:*
apache cxf4.2.0 → 4.2.4nvdUScpe:2.3:a:apache:cxf:*:*:*:*:*:*:*:*

advisories (2)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2026-3824Apache CXF: Mehrere SchwachstellenDeutsch2026-10-08csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in Apache CXF ausnutzen, um Sicherheitsvorkehrungen zu umgehen, Daten zu manipulieren und offenzulegen, Benutzer auf vom Angreifer kontrollierte Websites umzuleiten oder Denial-of-Service-Zustände auszulösen.
CERTFR-2026-AVI-1385Multiples vulnérabilités dans les produits VMwareFrançais2026-10-26vendor · certfrFR

sources

Which sources assert this record, and when.

cert_bund nvd certfr NVD CVE.org MITRE

published 2026-10-09modified 2026-10-20

references (2) nvd

External citations — patches, advisories, analysis.

http://www.openwall.com/lists/oss-security/2026/10/09/8Mailing ListThird Party Advisory
https://lists.apache.org/thread.html/mv5qfmd27gkbvt3k6by9db5bolrsbgy1Issue TrackingVendor Advisory

scry

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