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CVE-2026-24765

29
FAUCET Score

CVE-2026-24765 is a high-severity vulnerability in PHPUnit versions prior to 12.5.8, 11.5.50, 10.5.62, 9.6.33, and 8.5.52, affecting PHPUnit and Debian distributions. It involves unsafe deserialization of code coverage data in PHPT test execution, specifically in the cleanupForCoverage() method, which can lead to remote code execution. An attacker with local file write access can place a malicious serialized object, triggering arbitrary code execution during test runs with code coverage instrumentation enabled. The CVSS score is 7.8 (HIGH), indicating a local attack vector with low complexity, leading to high impact on confidentiality, integrity, and availability. There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
< 8.5.52CPE matchmatch criteria
cpe:2.3:a:phpunit_project:phpunit:*:*:*:*:*:-:*:*
>= 9.0.0, < 9.6.33CPE matchmatch criteria
cpe:2.3:a:phpunit_project:phpunit:*:*:*:*:*:-:*:*
>= 10.0.0, < 10.5.62CPE matchmatch criteria
cpe:2.3:a:phpunit_project:phpunit:*:*:*:*:*:-:*:*
>= 11.0.0, < 11.5.50CPE matchmatch criteria
cpe:2.3:a:phpunit_project:phpunit:*:*:*:*:*:-:*:*
>= 12.0.0, < 12.5.8CPE matchmatch criteria
cpe:2.3:a:phpunit_project:phpunit:*:*:*:*:*:-:*:*

CVSS Data

CVSS version used by this source: 3.1

7.8HIGH

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

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.34%
Probability of exploitation in next 30 days
EPSS Percentile
26.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0034 is in the 65th percentile among its peer group of 16,994 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (6)

composerpatch availablevia ghsa
Product: phpunit/phpunitFixed in: 8.5.52
composerpatch availablevia ghsa
Product: phpunit/phpunitFixed in: 9.6.33
composerpatch availablevia ghsa
Product: phpunit/phpunitFixed in: 10.5.62
composerpatch availablevia ghsa
Product: phpunit/phpunitFixed in: 11.5.50
composerpatch availablevia ghsa
Product: phpunit/phpunitFixed in: 12.5.8
github_advisorypatch availablevia nvd_reference
View patch

Vendor Advisories (2)

composerGHSA-vvj3-c3rp-c85phigh

PHPUnit Vulnerable to Unsafe Deserialization in PHPT Code Coverage Handling

Jan 27, 2026
redhatCVE-2026-24765Important

phpunit: PHPUnit: Arbitrary code execution via unsafe deserialization of code coverage files

Jan 27, 2026

References

lists.debian.org / debian-lts-announce/2026/02/msg00009.html
Mailing ListThird Party Advisory
github.com / sebastianbergmann/phpunit/commit/3141742e00620e2968d3d2e732d320de76685fda
Patch
github.com / sebastianbergmann/phpunit/releases/tag/10.5.63
Release Notes
github.com / sebastianbergmann/phpunit/releases/tag/11.5.50
Release Notes
github.com / sebastianbergmann/phpunit/releases/tag/12.5.8
Release Notes
github.com / sebastianbergmann/phpunit/releases/tag/8.5.52
Release Notes
github.com / sebastianbergmann/phpunit/releases/tag/9.6.33
Release Notes
github.com / sebastianbergmann/phpunit/security/advisories/GHSA-vvj3-c3rp-c85p
MitigationVendor Advisory