CVE-2026-41284

HIGHNVD 7.57.5—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 7.5 under NVD CVSS v3. EPSS exploit probability: 0.8%, top 47% 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
7.5EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.9%CVSS: 7.5Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

Allocation of Resources Without Limits or Throttling vulnerability in Apache Tomcat.

This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.21, from 10.1.0-M1 through 10.1.54, from 9.0.0.M1 through 9.0.117. Older, unsupported versions may also be affected.

Users are recommended to upgrade to version [FIXED_VERSION], which fixes the issue.

CVSS v3
7.5
EG Score
7.5HIGHmedium confidence
EG Risk
49
EG Risk 49/100

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
Severity75% × 45%
Exploitation1% × 40%
Automatability100% × 15%
EPSS PROB
0.9%
EPSS %ILE
57th
KEV
Not listed

Published

May 12, 2026

Last Modified

May 14, 2026

Advisory Details (2)

Auto-updated May 14, 2026
Patch available.
generic

oss-security - CVE-2026-41284: Apache Tomcat: Unbounded read in WebDAV LOCK and PROPFIND handling

http://www.openwall.com/lists/oss-security/2026/05/12/12
generic
https://lists.apache.org/thread/2nvqjr7ovjmvx2vbhb7s61ycd5msc8qc

Vendor Advisories for CVE-2026-41284(15)

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

Patch Availability(5)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
ubuntutomcat10-user (10.1.40-1ubuntu1.26.04.1) @ resolute2026-08-23ubuntu
ubuntutomcat11-user (11.0.18-1ubuntu0.1~esm1) @ resolute2026-08-23ubuntu
redhattomcat-catalina2026-07-22redhat
redhatjws6-tomcat-0:10.1.49-15.redhat_00013.1.el9jws2026-07-22redhat
redhatjws7-tomcat-0:11.0.21-5.redhat_00004.1.el9jws2026-07-14redhat

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(12 across 5 ecosystems)
Debian:13(3)
PackageVulnerable rangeFix by version rangeDependents
tomcat1010.1.40-1 ... 10.1.55-1~deb12u1 (8 versions)
  • every version up to 10.1.55-1~deb13u1: fixed in 10.1.55-1~deb13u1
—
tomcat1111.0.11-1 ... 11.0.6-1 (6 versions)
  • every version up to 11.0.22-1~deb13u1: fixed in 11.0.22-1~deb13u1
—
tomcat9—
  • every version up to 9.0.70-2: fixed in 9.0.70-2
—
Debian:14(3)
PackageVulnerable rangeFix by version rangeDependents
tomcat1010.1.40-1 ... 10.1.55-1~deb13u1 (9 versions)
  • every version up to 10.1.55-1: fixed in 10.1.55-1
—
tomcat1111.0.11-1 ... 11.0.6-1 (7 versions)
  • every version up to 11.0.22-1: fixed in 11.0.22-1
—
tomcat9—
  • every version up to 9.0.70-2: fixed in 9.0.70-2
—
Maven(3)
PackageVulnerable rangeFix by version rangeDependents
org.apache.tomcat.embed:tomcat-embed-core11.0.0 ... 11.0.9 (42 versions)
  • every version up to 9.0.118: fixed in 9.0.118
  • 10.1.0-M1 up to 10.1.55: fixed in 10.1.55
  • 11.0.0-M1 up to 11.0.22: fixed in 11.0.22
—
org.apache.tomcat:tomcat11.0.0 ... 11.0.9 (42 versions)
  • every version up to 9.0.118: fixed in 9.0.118
  • 10.1.0-M1 up to 10.1.55: fixed in 10.1.55
  • 11.0.0-M1 up to 11.0.22: fixed in 11.0.22
—
org.apache.tomcat:tomcat-catalina11.0.0 ... 11.0.9 (42 versions)
  • every version up to 9.0.118: fixed in 9.0.118
  • 10.1.0-M1 up to 10.1.55: fixed in 10.1.55
  • 11.0.0-M1 up to 11.0.22: fixed in 11.0.22
—
Debian:12(2)
PackageVulnerable rangeFix by version rangeDependents
tomcat1010.1.10-1 ... 10.1.9-1 (33 versions)
  • every version up to 10.1.55-1~deb12u1: fixed in 10.1.55-1~deb12u1
—
tomcat9—
  • every version up to 9.0.70-2: fixed in 9.0.70-2
—
Debian:11(1)
PackageVulnerable rangeFix by version rangeDependents
tomcat99.0.107-0+deb11u1 ... 9.0.95-1 (34 versions)
  • every version up to 9.0.118-0+deb11u1: fixed in 9.0.118-0+deb11u1
—

Weakness Classification(1)

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

Additional Vendor Advisories

(2)

Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.

Data Freshness Timeline

(refreshed 6× in last 7d / 23× 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 210 total refreshes for this CVE.

  1. 2026-10-09 20:07 UTCEPSS rescore
  2. 2026-10-08 17:12 UTCEPSS rescore
  3. 2026-10-07 23:48 UTCEPSS rescore
  4. 2026-10-06 15:17 UTCEPSS rescore
  5. 2026-10-05 17:43 UTCEPSS rescore
  6. 2026-10-03 14:25 UTCEPSS rescore
  7. 2026-10-01 19:50 UTCEPSS rescore
  8. 2026-09-30 15:03 UTCEPSS rescore
  9. 2026-09-30 06:28 UTCOSV refresh
  10. 2026-09-27 13:48 UTCEPSS rescore
  11. 2026-09-26 15:58 UTCEPSS rescore
  12. 2026-09-23 17:53 UTCEPSS rescore
  13. 2026-09-20 20:15 UTCEPSS rescore
  14. 2026-09-18 19:28 UTCEPSS rescore
  15. 2026-09-17 19:31 UTCEPSS rescore
  16. 2026-09-16 14:08 UTCEPSS rescore
  17. 2026-09-16 05:15 UTCEPSS rescore
  18. 2026-09-13 16:47 UTCEPSS rescore
  19. 2026-09-12 15:01 UTCEPSS rescore
  20. 2026-09-11 14:53 UTCEPSS rescore
  21. 2026-09-11 11:23 UTCOSV refresh
  22. 2026-09-11 09:37 UTCEPSS rescore
  23. 2026-09-10 09:34 UTCEPSS rescore
  24. 2026-09-08 22:00 UTCEPSS rescore
  25. 2026-09-07 16:01 UTCEPSS rescore
Show 75 more
  1. 2026-09-06 13:47 UTCEPSS rescore
  2. 2026-09-04 05:06 UTCEPSS rescore
  3. 2026-09-02 14:12 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
  7. 2026-08-30 01:22 UTCEPSS rescore
  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 13:49 UTCEPSS rescore
  12. 2026-08-23 18:24 UTCEG score recompute
  13. 2026-08-23 18:24 UTCVendor advisory
  14. 2026-08-23 00:19 UTCEPSS rescore
  15. 2026-08-21 23:49 UTCEPSS rescore
  16. 2026-08-20 22:55 UTCEPSS rescore
  17. 2026-08-19 17:03 UTCEPSS rescore
  18. 2026-08-18 13:48 UTCEPSS rescore
  19. 2026-08-17 13:47 UTCEPSS rescore
  20. 2026-08-17 10:54 UTCEG score recompute
  21. 2026-08-17 10:54 UTCVendor advisory
  22. 2026-08-16 14:56 UTCEPSS rescore
  23. 2026-08-16 04:17 UTCEG score recompute
  24. 2026-08-16 04:17 UTCVendor advisory
  25. 2026-08-16 02:14 UTCEPSS rescore
  26. 2026-08-15 01:30 UTCEPSS rescore
  27. 2026-08-15 00:46 UTCVendor advisory
  28. 2026-08-14 13:47 UTCVendor advisory
  29. 2026-08-14 02:48 UTCEG score recompute
  30. 2026-08-14 02:48 UTCVendor advisory
  31. 2026-08-13 22:00 UTCEPSS rescore
  32. 2026-08-13 03:15 UTCVendor advisory
  33. 2026-08-12 16:16 UTCEG score recompute
  34. 2026-08-12 16:16 UTCVendor advisory
  35. 2026-08-12 13:51 UTCEPSS rescore
  36. 2026-08-11 15:43 UTCEG score recompute
  37. 2026-08-11 15:43 UTCVendor advisory
  38. 2026-08-11 13:43 UTCEPSS rescore
  39. 2026-08-11 01:05 UTCEG score recompute
  40. 2026-08-11 01:05 UTCVendor advisory
  41. 2026-08-11 00:00 UTCEPSS rescore
  42. 2026-08-10 11:33 UTCVendor advisory
  43. 2026-08-10 00:05 UTCEG score recompute
  44. 2026-08-10 00:05 UTCVendor advisory
  45. 2026-08-09 13:46 UTCEPSS rescore
  46. 2026-08-09 13:06 UTCVendor advisory
  47. 2026-08-09 02:07 UTCEG score recompute
  48. 2026-08-09 02:07 UTCVendor advisory
  49. 2026-08-08 16:37 UTCEPSS rescore
  50. 2026-08-08 05:56 UTCVendor advisory
  51. 2026-08-07 18:57 UTCEG score recompute
  52. 2026-08-07 18:57 UTCVendor advisory
  53. 2026-08-07 07:58 UTCVendor advisory
  54. 2026-08-06 19:48 UTCEG score recompute
  55. 2026-08-06 19:48 UTCVendor advisory
  56. 2026-08-06 13:46 UTCEPSS rescore
  57. 2026-08-06 08:49 UTCVendor advisory
  58. 2026-08-05 21:50 UTCEG score recompute
  59. 2026-08-05 21:50 UTCVendor advisory
  60. 2026-08-05 19:17 UTCEPSS rescore
  61. 2026-08-04 15:10 UTCEPSS rescore
  62. 2026-08-04 10:38 UTCEPSS rescore
  63. 2026-08-03 19:17 UTCEG score recompute
  64. 2026-08-03 19:17 UTCVendor advisory
  65. 2026-08-03 10:36 UTCEPSS rescore
  66. 2026-08-02 21:29 UTCVendor advisory
  67. 2026-08-02 10:30 UTCEG score recompute
  68. 2026-08-02 10:30 UTCVendor advisory
  69. 2026-08-02 02:27 UTCEPSS rescore
  70. 2026-08-01 23:31 UTCEG score recompute
  71. 2026-08-01 23:31 UTCVendor advisory
  72. 2026-08-01 04:16 UTCEPSS rescore
  73. 2026-07-30 16:28 UTCEPSS rescore
  74. 2026-07-30 01:30 UTCEPSS rescore
  75. 2026-07-28 15:36 UTCEPSS rescore

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Frequently asked(5)

What is CVE-2026-41284?
CVE-2026-41284 is a high vulnerability published on May 12, 2026. Allocation of Resources Without Limits or Throttling vulnerability in Apache Tomcat. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.21, from 10.1.0-M1 through 10.1.54, from 9.0.0.M1 through 9.0.117. Older, unsupported versions may also be affected. Users are recommended to upgrade to…
When was CVE-2026-41284 disclosed?
CVE-2026-41284 was first published on May 12, 2026, with the most recent update on May 14, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-41284 actively exploited?
CVE-2026-41284 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.9% probability of exploitation in the next 30 days (57th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-41284?
CVE-2026-41284 has a CVSS v3 base score of 7.5 (NVD).
How do I remediate CVE-2026-41284?
A fix for CVE-2026-41284 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-41284 are linked in the Vendor Advisories panel on this page.

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