CVE-2026-22741

LOWNVD 3.13.1—
EchelonGraph scoreMEDIUM confidence

This low-severity CVE scores 3.1 under NVD CVSS v3. EPSS exploit probability: 0.2%, top 85% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, nvd
3.1EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.2%CVSS: 3.1Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

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.

CVSS v3
3.1
EG Score
3.1LOWmedium confidence
EG Risk
14
EG Risk 14/100

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity31% × 45%
Exploitation0% × 40%
Automatability0% × 15%
EPSS PROB
0.2%
EPSS %ILE
13th
KEV
Not listed

Published

April 29, 2026

Last Modified

May 4, 2026

References (2)

Vendor Advisories for CVE-2026-22741(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Affected Packages

(6 across 5 ecosystems)
Maven(2)
PackageVulnerable rangeFix by version rangeDependents
org.springframework:spring-webflux5.0.0.RELEASE ... 5.3.9 (108 versions)
  • 7.0.0 up to 7.0.7: fixed in 7.0.7
  • 6.2.0 up to 6.2.18: fixed in 6.2.18
  • 6.1.0 through 6.1.26: no fix on record
  • every version through 5.3.47: no fix on record
—
org.springframework:spring-webmvc1.0 ... 5.3.9 (250 versions)
  • 7.0.0 up to 7.0.7: fixed in 7.0.7
  • 6.2.0 up to 6.2.18: fixed in 6.2.18
  • 6.1.0 through 6.1.26: no fix on record
  • every version through 5.3.47: no fix on record
—
Debian:11(1)
PackageVulnerable rangeFix by version rangeDependents
libspring-java4.3.30-1, 4.3.30-2, 4.3.30-3, 4.3.30-4
  • every version on: no fix on record
—
Debian:12(1)
PackageVulnerable rangeFix by version rangeDependents
libspring-java4.3.30-2, 4.3.30-3, 4.3.30-4
  • every version on: no fix on record
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
libspring-java4.3.30-3, 4.3.30-4
  • every version on: no fix on record
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
libspring-java4.3.30-3, 4.3.30-4
  • every version on: no fix on record
—

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 6× in last 7d / 22× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 180 total refreshes for this CVE.

  1. 2026-10-09 20:07 UTCEPSS rescore
  2. 2026-10-08 17:11 UTCEPSS rescore
  3. 2026-10-07 23:47 UTCEPSS rescore
  4. 2026-10-06 15:17 UTCEPSS rescore
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  10. 2026-09-28 13:51 UTCEPSS rescore
  11. 2026-09-27 13:47 UTCEPSS rescore
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  1. 2026-09-06 13:47 UTCEPSS rescore
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  3. 2026-09-02 14:11 UTCEPSS rescore
  4. 2026-09-01 13:53 UTCEPSS rescore
  5. 2026-09-01 04:39 UTCEPSS rescore
  6. 2026-08-30 19:17 UTCEPSS rescore
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  8. 2026-08-28 21:41 UTCEPSS rescore
  9. 2026-08-27 14:25 UTCEPSS rescore
  10. 2026-08-26 14:46 UTCEPSS rescore
  11. 2026-08-25 13:48 UTCEPSS rescore
  12. 2026-08-23 00:19 UTCEPSS rescore
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  15. 2026-08-19 17:03 UTCEPSS rescore
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  18. 2026-08-16 14:56 UTCEPSS rescore
  19. 2026-08-16 05:27 UTCEG score recompute
  20. 2026-08-16 02:14 UTCEPSS rescore
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  22. 2026-08-13 22:00 UTCEPSS rescore
  23. 2026-08-12 17:32 UTCEG score recompute
  24. 2026-08-12 13:50 UTCEPSS rescore
  25. 2026-08-11 13:42 UTCEPSS rescore
  26. 2026-08-11 00:00 UTCEPSS rescore
  27. 2026-08-09 13:46 UTCEPSS rescore
  28. 2026-08-09 03:05 UTCEG score recompute
  29. 2026-08-08 16:37 UTCEPSS rescore
  30. 2026-08-06 13:46 UTCEPSS rescore
  31. 2026-08-05 22:43 UTCEG score recompute
  32. 2026-08-05 19:17 UTCEPSS rescore
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  35. 2026-08-02 05:53 UTCEG score recompute
  36. 2026-08-02 02:26 UTCEPSS rescore
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  38. 2026-07-30 01:30 UTCEPSS rescore
  39. 2026-07-27 14:13 UTCEPSS rescore
  40. 2026-07-26 14:54 UTCEPSS rescore
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  42. 2026-07-25 14:17 UTCEPSS rescore
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  44. 2026-07-24 14:17 UTCEPSS rescore
  45. 2026-07-23 14:18 UTCEPSS rescore
  46. 2026-07-23 14:18 UTCEPSS rescore
  47. 2026-07-23 03:06 UTCEG score recompute
  48. 2026-07-22 14:08 UTCEPSS rescore
  49. 2026-07-21 15:24 UTCEPSS rescore
  50. 2026-07-21 15:24 UTCEPSS rescore
  51. 2026-07-20 17:08 UTCEPSS rescore
  52. 2026-07-19 14:31 UTCEPSS rescore
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  54. 2026-07-19 02:29 UTCEPSS rescore
  55. 2026-07-19 02:28 UTCEPSS rescore
  56. 2026-07-18 10:04 UTCEPSS rescore
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  58. 2026-07-16 17:03 UTCEPSS rescore
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  60. 2026-07-15 16:57 UTCEPSS rescore
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  67. 2026-07-12 05:46 UTCEPSS rescore
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  69. 2026-07-11 08:27 UTCEPSS rescore
  70. 2026-07-09 19:10 UTCEPSS rescore
  71. 2026-07-08 15:15 UTCEPSS rescore
  72. 2026-07-08 15:15 UTCEPSS rescore
  73. 2026-07-07 13:46 UTCEPSS rescore
  74. 2026-07-06 16:27 UTCEPSS rescore
  75. 2026-07-06 16:27 UTCEPSS rescore

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Frequently asked(5)

What is CVE-2026-22741?
CVE-2026-22741 is a low vulnerability published on April 29, 2026. 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…
When was CVE-2026-22741 disclosed?
CVE-2026-22741 was first published on April 29, 2026, with the most recent update on May 4, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-22741 actively exploited?
CVE-2026-22741 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.2% probability of exploitation in the next 30 days (13th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-22741?
CVE-2026-22741 has a CVSS v3 base score of 3.1 (NVD).
How do I remediate CVE-2026-22741?
A fix for CVE-2026-22741 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-22741 are linked in the Vendor Advisories panel on this page.

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