Your RSA-2048 keys break in 2030. Find every one of them before attackers do.
Maven
Not in CISA KEV
HIGH severity

GHSA-j388-8rm5-p97f

HIGH

GHSA-j388-8rm5-p97f is a high-severity (CVSS 8.1) Expression Language Injection vulnerability in org.springframework.data:spring-data-rest-core. O3 Security confirms whether GHSA-j388-8rm5-p97f is actually reachable in your code before you act, and blocks exploitation at runtime until you patch.

Spring Data REST is vulnerable to SpEL expression injection through map-typed properties when processing JSON Patch requests

Also known asCVE-2026-41729
Published
Jun 10, 2026
Updated
Aug 12, 2026
Affected
5 pkgs
Patched
2 / 5
Exploits
None indexed
Exploitation data as of Aug 12, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

Real-World Exposure

5 pkgs affected
org.springframework.data:spring-data-rest-coreorg.springframework.data:spring-data-rest-coreorg.springframework.data:spring-data-rest-coreorg.springframework.data:spring-data-rest-coreorg.springframework.data:spring-data-rest-core

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

Spring Data REST is vulnerable to SpEL expression injection through map-typed properties when processing JSON Patch (application/json-patch+json) requests. When a persistent entity exposes a Map-typed property, the JSON Pointer path segment used as the map key is embedded directly into a SpEL expression without sanitization or validation.

Affected versions: Spring Data REST 3.7.0 through 3.7.19; 4.3.0 through 4.3.16; 4.4.0 through 4.4.14; 4.5.0 through 4.5.11; 5.0.0 through 5.0.5.

Affected Packages

5 total 2 fixed
EcosystemPackageVulnerable rangeFix
Mavenorg.springframework.data:spring-data-rest-core5.0.0&&< 5.0.65.0.6
Mavenorg.springframework.data:spring-data-rest-core4.5.0&&< 4.5.124.5.12
Mavenorg.springframework.data:spring-data-rest-core4.4.0No fix
Mavenorg.springframework.data:spring-data-rest-core4.3.0No fix
Mavenorg.springframework.data:spring-data-rest-coreall versionsNo fix

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.springframework.data:spring-data-rest-core. O3's reachability analysis confirms whether the vulnerable code path is actually invoked in your application, so you act on real exposure instead of every transitive match.

  2. Fix

    Update org.springframework.data:spring-data-rest-core to 5.0.6 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-j388-8rm5-p97f 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 pinpoints whether GHSA-j388-8rm5-p97f is reachable in your code and exactly where to fix it, then blocks exploitation in production at runtime until the patched version is deployed.

Tailored to GHSA-j388-8rm5-p97f. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.

Frequently Asked Questions

Spring Data REST is vulnerable to SpEL expression injection through map-typed properties when processing JSON Patch (application/json-patch+json) requests. When a persistent entity exposes a Map-typed property, the JSON Pointer path segment used as the map key is embedded directly into a SpEL expression without sanitization or validation. Affected versions: Spring Data REST 3.7.0 through 3.7.19; 4.3.0 through 4.3.16; 4.4.0 through 4.4.14; 4.5.0 through 4.5.11; 5.0.0 through 5.0.5.
O3 Security · Impact-Aware SCA

Is GHSA-j388-8rm5-p97f in your dependencies?

O3 detects GHSA-j388-8rm5-p97f across Maven dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.

GHSA-j388-8rm5-p97f: spring-data-rest-core… | O3 Security