CVE-2025-66516

Publication date 4 December 2025

Last updated 27 May 2026

Ubuntu priority

Cvss 3 Severity Score

Description

Critical XXE in Apache Tika tika-core (1.13-3.2.1), tika-pdf-module (2.0.0-3.2.1) and tika-parsers (1.13-1.28.5) modules on all platforms allows an attacker to carry out XML External Entity injection via a crafted XFA file inside of a PDF. This CVE covers the same vulnerability as in CVE-2025-54988. However, this CVE expands the scope of affected packages in two ways. First, while the entrypoint for the vulnerability was the tika-parser-pdf-module as reported in CVE-2025-54988, the vulnerability and its fix were in tika-core. Users who upgraded the tika-parser-pdf-module but did not upgrade tika-core to >= 3.2.2 would still be vulnerable. Second, the original report failed to mention that in the 1.x Tika releases, the PDFParser was in the "org.apache.tika:tika-parsers" module.

Read the notes from the security team

Status

Show unmaintained releases

Package	Ubuntu Release	Status
tika	26.04 LTS resolute	Vulnerable
	25.10 questing	Vulnerable
	25.04 plucky	Ignored end of life, was needs-triage
	24.04 LTS noble	Vulnerable
	22.04 LTS jammy	Fixed 1.22-2+deb11u1build0.22.04.1
	20.04 LTS focal	Fixed 1.22-1ubuntu0.1~esm2
	18.04 LTS bionic	Vulnerable
	16.04 LTS xenial	Ignored end of ESM support, was needs-triage

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Notes

john-breton

tika is FTBFS on bionic, noble and up due to OpenJDK incompatability. See https://bugs.launchpad.net/ubuntu/+source/tika/+bug/2045822 for more information.

Severity score breakdown

Parameter	Value
Base score	8.4 · High
Attack vector	Local
Attack complexity	Low
Privileges required	None
User interaction	None
Scope	Unchanged
Confidentiality	High
Integrity impact	High
Availability impact	High
Vector	CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References

Related Ubuntu Security Notices (USN)

USN-8324-1
Apache Tika vulnerabilities
27 May 2026