CVE catalog

CVE-2026-22741

Spring MVC and WebFlux applications are vulnerable to…

Spring MVC and WebFlux applications are vulnerable to cache poisoning when resolving static resources. More precisely, an application can be vulnerable when all the following are true: * the application is using Spring MVC or Spring WebFlux * the application is configuring the resource chain support https://docs.spring.io/spring-framework/reference/web/webmvc/mvc-config/static-resources.html#page-title with caching enabled * the application adds support for encoded resources resolution * the resource cache must be empty when the attacker has access to the application When all the conditions above are met, the attacker can send malicious requests and poison the resource cache with resources using the wrong encoding. This can cause a denial of service by breaking the front-end application for clients.

Severity: Medium · CVSS 5.9CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Published: Apr 19, 2026, 10:00:00 PM UTC
Source: [NVD] · [CVE record]
EPSS: 0.24% · 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": "5.3.48"
    },
    {
      "name": "spring_framework",
      "ecosystem": "cpe",
      "fixed_version": "6.1.27"
    },
    {
      "name": "spring_framework",
      "ecosystem": "cpe",
      "fixed_version": "6.2.18"
    },
    {
      "name": "spring_framework",
      "ecosystem": "cpe",
      "fixed_version": "7.0.7"
    },
    {
      "name": "spring_framework",
      "ranges": [
        {
          "fixed": "7.0.7",
          "introduced": "7.0.0",
          "last_affected": "",
          "start_excluding": ""
        }
      ],
      "ecosystem": "cpe",
      "fixed_version": "7.0.7",
      "provider_record_id": "NVD-CVE-2026-22741"
    }
  ]
}

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 27, 2026, 10:28:14 AM 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]