CVE catalog

CVE-2026-41851

Applications which accept user-supplied Spring…

Applications which accept user-supplied Spring Expression Language (SpEL) expressions may be vulnerable to a Denial of Service (DoS) attack if the evaluation of a SpEL expression triggers unbounded cache growth. Affected versions: Spring Framework 7.0.0 through 7.0.7; 6.2.0 through 6.2.18; 6.1.0 through 6.1.27; 5.3.0 through 5.3.48.

Severity: Medium · CVSS 5.3CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Published: Jun 8, 2026, 10:00:00 PM UTC
Source: [NVD] · [CVE record]
EPSS: 0.39% · Oct 27, 2026

Projects and upstream resources

[libspring-java][Source-reported homepage]

Reported versions and fixes

Each observation applies to its named package, distribution, and release. Distribution backports can fix a vulnerability while retaining an older upstream version number.

Version impact has not been established. The original provider fields are retained below.

Provider details and historical evidence

Original provider fields

{
  "package_releases": [
    {
      "name": "libspring-java",
      "status": "vulnerable",
      "release": "sid",
      "version": "4.3.30-6"
    },
    {
      "name": "libspring-java",
      "status": "vulnerable",
      "release": "forky",
      "version": "4.3.30-6"
    },
    {
      "name": "libspring-java",
      "status": "vulnerable",
      "release": "trixie",
      "version": "4.3.30-3"
    },
    {
      "name": "libspring-java",
      "status": "vulnerable",
      "release": "bookworm",
      "version": "4.3.30-2"
    }
  ],
  "fixed_versions": [
    {
      "bug": null,
      "name": "libspring-java",
      "type": "source",
      "origin": null,
      "release": "sid",
      "urgency": "unimportant",
      "fixed_version": ""
    },
    {
      "bug": null,
      "name": "libspring-java",
      "type": "source",
      "origin": null,
      "release": "forky",
      "urgency": "unimportant",
      "fixed_version": ""
    },
    {
      "bug": null,
      "name": "libspring-java",
      "type": "source",
      "origin": null,
      "release": "trixie",
      "urgency": "unimportant",
      "fixed_version": ""
    },
    {
      "bug": null,
      "name": "libspring-java",
      "type": "source",
      "origin": null,
      "release": "bookworm",
      "urgency": "unimportant",
      "fixed_version": ""
    }
  ],
  "distribution_packages": [
    {
      "name": "libspring-java",
      "ecosystem": "cpe",
      "fixed_version": "not yet fixed"
    },
    {
      "name": "spring_framework",
      "ecosystem": "cpe",
      "fixed_version": "5.3.49"
    },
    {
      "name": "spring_framework",
      "ecosystem": "cpe",
      "fixed_version": "6.1.28"
    },
    {
      "name": "spring_framework",
      "ecosystem": "cpe",
      "fixed_version": "6.2.19"
    },
    {
      "name": "spring_framework",
      "ecosystem": "cpe",
      "fixed_version": "7.0.8"
    }
  ]
}

OpenFactory catalog packages

Matching against OpenFactory catalog package versions is in progress.

[Debian 12 (Bookworm)]

[libspring-aop-java]Unknown
Source package: [libspring-java]
Details (2)
- 4.3.30-2 · all · bookworm
  Affected
  nvd · libspring-java · debian · bookworm; nvd · libspring-java · debian · 12
- 4.3.30-2 · all · bookworm
  Affected
  nvd · libspring-java · debian · bookworm; nvd · libspring-java · debian · 12
[libspring-beans-java]Unknown
Source package: [libspring-java]
Details (2)
- 4.3.30-2 · all · bookworm
  Affected
  nvd · libspring-java · debian · bookworm; nvd · libspring-java · debian · 12
- 4.3.30-2 · all · bookworm
  Affected
  nvd · libspring-java · debian · bookworm; nvd · libspring-java · debian · 12
[libspring-context-java]Unknown
Source package: [libspring-java]
Details (2)
- 4.3.30-2 · all · bookworm
  Affected
  nvd · libspring-java · debian · bookworm; nvd · libspring-java · debian · 12
- 4.3.30-2 · all · bookworm
  Affected
  nvd · libspring-java · debian · bookworm; nvd · libspring-java · debian · 12
[libspring-context-support-java]Unknown
Source package: [libspring-java]
Details (2)
- 4.3.30-2 · all · bookworm
  Affected
  nvd · libspring-java · debian · bookworm; nvd · libspring-java · debian · 12
- 4.3.30-2 · all · bookworm
  Affected
  nvd · libspring-java · debian · bookworm; nvd · libspring-java · debian · 12
[libspring-core-java]Unknown
Source package: [libspring-java]
Details (2)
- 4.3.30-2 · all · bookworm
  Affected
  nvd · libspring-java · debian · bookworm; nvd · libspring-java · debian · 12
- 4.3.30-2 · all · bookworm
  Affected
  nvd · libspring-java · debian · bookworm; nvd · libspring-java · debian · 12
[libspring-expression-java]Unknown
Source package: [libspring-java]
Details (2)
- 4.3.30-2 · all · bookworm
  Affected
  nvd · libspring-java · debian · bookworm; nvd · libspring-java · debian · 12
- 4.3.30-2 · all · bookworm
  Affected
  nvd · libspring-java · debian · bookworm; nvd · libspring-java · debian · 12
[libspring-instrument-java]Unknown
Source package: [libspring-java]
Details (2)
- 4.3.30-2 · all · bookworm
  Affected
  nvd · libspring-java · debian · bookworm; nvd · libspring-java · debian · 12
- 4.3.30-2 · all · bookworm
  Affected
  nvd · libspring-java · debian · bookworm; nvd · libspring-java · debian · 12
[libspring-jdbc-java]Unknown
Source package: [libspring-java]
Details (2)
- 4.3.30-2 · all · bookworm
  Affected
  nvd · libspring-java · debian · bookworm; nvd · libspring-java · debian · 12
- 4.3.30-2 · all · bookworm
  Affected
  nvd · libspring-java · debian · bookworm; nvd · libspring-java · debian · 12
[libspring-jms-java]Unknown
Source package: [libspring-java]
Details (2)
- 4.3.30-2 · all · bookworm
  Affected
  nvd · libspring-java · debian · bookworm; nvd · libspring-java · debian · 12
- 4.3.30-2 · all · bookworm
  Affected
  nvd · libspring-java · debian · bookworm; nvd · libspring-java · debian · 12
[libspring-messaging-java]Unknown
Source package: [libspring-java]
Details (2)
- 4.3.30-2 · all · bookworm
  Affected
  nvd · libspring-java · debian · bookworm; nvd · libspring-java · debian · 12
- 4.3.30-2 · all · bookworm
  Affected
  nvd · libspring-java · debian · bookworm; nvd · libspring-java · debian · 12
[libspring-orm-java]Unknown
Source package: [libspring-java]
Details (2)
- 4.3.30-2 · all · bookworm
  Affected
  nvd · libspring-java · debian · bookworm; nvd · libspring-java · debian · 12
- 4.3.30-2 · all · bookworm
  Affected
  nvd · libspring-java · debian · bookworm; nvd · libspring-java · debian · 12
[libspring-oxm-java]Unknown
Source package: [libspring-java]
Details (2)
- 4.3.30-2 · all · bookworm
  Affected
  nvd · libspring-java · debian · bookworm; nvd · libspring-java · debian · 12
- 4.3.30-2 · all · bookworm
  Affected
  nvd · libspring-java · debian · bookworm; nvd · libspring-java · debian · 12
[libspring-test-java]Unknown
Source package: [libspring-java]
Details (2)
- 4.3.30-2 · all · bookworm
  Affected
  nvd · libspring-java · debian · bookworm; nvd · libspring-java · debian · 12
- 4.3.30-2 · all · bookworm
  Affected
  nvd · libspring-java · debian · bookworm; nvd · libspring-java · debian · 12
[libspring-transaction-java]Unknown
Source package: [libspring-java]
Details (2)
- 4.3.30-2 · all · bookworm
  Affected
  nvd · libspring-java · debian · bookworm; nvd · libspring-java · debian · 12
- 4.3.30-2 · all · bookworm
  Affected
  nvd · libspring-java · debian · bookworm; nvd · libspring-java · debian · 12
[libspring-web-java]Unknown
Source package: [libspring-java]
Details (2)
- 4.3.30-2 · all · bookworm
  Affected
  nvd · libspring-java · debian · bookworm; nvd · libspring-java · debian · 12
- 4.3.30-2 · all · bookworm
  Affected
  nvd · libspring-java · debian · bookworm; nvd · libspring-java · debian · 12
[libspring-web-portlet-java]Unknown
Source package: [libspring-java]
Details (2)
- 4.3.30-2 · all · bookworm
  Affected
  nvd · libspring-java · debian · bookworm; nvd · libspring-java · debian · 12
- 4.3.30-2 · all · bookworm
  Affected
  nvd · libspring-java · debian · bookworm; nvd · libspring-java · debian · 12
[libspring-web-servlet-java]Unknown
Source package: [libspring-java]
Details (2)
- 4.3.30-2 · all · bookworm
  Affected
  nvd · libspring-java · debian · bookworm; nvd · libspring-java · debian · 12
- 4.3.30-2 · all · bookworm
  Affected
  nvd · libspring-java · debian · bookworm; nvd · libspring-java · debian · 12

[Debian 13 (Trixie)]

[libspring-aop-java]Unknown
Source package: [libspring-java]
Details (2)
- 4.3.30-3 · all · trixie
  Affected
  nvd · libspring-java · debian · 13
- 4.3.30-3 · all · trixie
  Affected
  nvd · libspring-java · debian · 13
[libspring-beans-java]Unknown
Source package: [libspring-java]
Details (2)
- 4.3.30-3 · all · trixie
  Affected
  nvd · libspring-java · debian · 13
- 4.3.30-3 · all · trixie
  Affected
  nvd · libspring-java · debian · 13
[libspring-context-java]Unknown
Source package: [libspring-java]
Details (2)
- 4.3.30-3 · all · trixie
  Affected
  nvd · libspring-java · debian · 13
- 4.3.30-3 · all · trixie
  Affected
  nvd · libspring-java · debian · 13

Next results

Observed: Oct 23, 2026, 9:46:53 PM UTC

References

[CERT-Bund public advisories] · [Debian Security Tracker] · [FIRST EPSS] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX]