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CVE-2025-35036 — hibernate-validator

Fix: hibernate/hibernate-validator@05f795b

CVE-2025-35036 is a Code Injection vulnerability in org.hibernate.validator:hibernate-validator. A fix is available for org.hibernate.validator:hibernate-validator — see the affected versions and patch details below.

hibernate-validator insecure default Expression Language interpolation

Also known asGHSA-7v6m-28jr-rg84
Published
Jun 3, 2025
Updated
Aug 12, 2026
Affected
4 pkgs
Patched
4 / 4
Exploits
None indexed
Exploitation data as of Sep 24, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

Exploitation Status

Proof-of-concept exploit code exists

  • CISA’s SSVC triage found public proof-of-concept exploit code for this CVE, though no confirmed active exploitation.

Exploitation and automatability from CISA’s SSVC triage for CVE-2025-35036.

EPSS Exploitation Probability

via FIRST.org ↗
0.7%probability of exploitation in next 30 days
Lower Risk0.00%
Lower risk than most CVEs53th percentile — riskier than 53% of all scored CVEsHighest risk

EPSS (Exploit Prediction Scoring System) is a daily probability model maintained by FIRST.org. It estimates the likelihood a CVE will be exploited in production environments within the next 30 days, derived from real-world threat intelligence signals.

Real-World Exposure

4 pkgs affected
☕org.hibernate.validator:hibernate-validator☕org.hibernate.validator:hibernate-validator☕org.hibernate:hibernate-validator☕org.hibernate:hibernate-validator

Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects Maven packages — download data is not available via public APIs for these ecosystems.

Description

Hibernate Validator before 6.2.0 and 7.0.0, by default and depending how it is used, may interpolate user-supplied input in a constraint violation message with Expression Language. This could allow an attacker to access sensitive information or execute arbitrary Java code. Hibernate Validator as of 6.2.0 and 7.0.0 no longer interpolates custom constraint violation messages with Expression Language and strongly recommends not allowing user-supplied input in constraint violation messages. CVE-2020-5245 and CVE-2025-4428 are examples of related, downstream vulnerabilities involving Expression Language intepolation of user-supplied data.

Affected Packages

4 total 4 fixed
EcosystemPackageVulnerable rangeFix
☕Mavenorg.hibernate.validator:hibernate-validatorall versions6.2.0.CR1org.hibernate.validator:hibernate-validator:6.2.0.CR1
☕Mavenorg.hibernate.validator:hibernate-validator≥ 7.0.0.Alpha1&&< 7.0.0.CR17.0.0.CR1org.hibernate.validator:hibernate-validator:7.0.0.CR1
☕Mavenorg.hibernate:hibernate-validatorall versions6.2.0.CR1org.hibernate:hibernate-validator:6.2.0.CR1
☕Mavenorg.hibernate:hibernate-validator≥ 7.0.0.Alpha1&&< 7.0.0.CR17.0.0.CR1org.hibernate:hibernate-validator:7.0.0.CR1

Detection & mitigation playbook

Open-source dependency
  1. Detect

    Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for org.hibernate.validator:hibernate-validator, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

  2. Fix

    Update org.hibernate.validator:hibernate-validator to 6.2.0.CR1 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2025-35036 is resolved across your whole dependency graph.

  3. Workarounds

    If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.

  4. How O3 protects you

    O3 Security's impact-aware SCA analyses which vulnerable code paths your application actually calls, so a match like CVE-2025-35036 can be triaged on real exposure rather than presence alone.

Tailored to CVE-2025-35036. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.

Fixing This On Your OS

If you run this on a Linux distribution, patch through your package manager against the distro's own security advisory below — it tracks the exact backported fix for your release, which can ship on a different timeline (and sometimes a different severity) than the upstream project.

Red HatImportant

This vulnerability marked as Important rather than Moderate because it enables Expression Language (EL) injection through user-supplied input embedded in validation messages — effectively escalating a benign validation failure into a potential Remote Code Execution (RCE) vector. In environments where EL expressions…

ProductFixed inAdvisory
Red Hat JBoss Enterprise Application Platform 7hibernate-validatorRHSA-2025:10931
Red Hat JBoss Enterprise Application Platform 7.4 for RHEL 8eap7-activemq-artemis-0:2.16.0-21.redhat_00055.1.el8eapRHSA-2025:10925
Red Hat JBoss Enterprise Application Platform 7.4 for RHEL 9eap7-activemq-artemis-0:2.16.0-21.redhat_00055.1.el9eapRHSA-2025:10926
Red Hat JBoss Enterprise Application Platform 7.4 on RHEL 7eap7-activemq-artemis-0:2.16.0-21.redhat_00055.1.el7eapRHSA-2025:10924

Frequently Asked Questions

Hibernate Validator before 6.2.0 and 7.0.0, by default and depending how it is used, may interpolate user-supplied input in a constraint violation message with Expression Language. This could allow an attacker to access sensitive information or execute arbitrary Java code. Hibernate Validator as of 6.2.0 and 7.0.0 no longer interpolates custom constraint violation messages with Expression Language and strongly recommends not allowing user-supplied input in constraint violation messages. CVE-2020-5245 and CVE-2025-4428 are examples of related, downstream vulnerabilities involving Expression Lan
O3 Security · Impact-Aware SCA

Is CVE-2025-35036 in your dependencies?

O3 Security finds CVE-2025-35036 across Maven dependencies, including transitive ones, and its impact-aware SCA ranks findings by whether your code actually calls the vulnerable path.

CVE-2025-35036: hibernate-validator | O3 Security