Read the docs
TI-2025-22812 Aliases CVE-2025-31650GHSA-3p2h-wqq4-wf4h

Apache Tomcat: DoS via malformed HTTP/2 PRIORITY_UPDATE frame

Priority HIGH 74CWE-459Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
None · None · High
Fix status
Partial Red Hat: 14 fixed, 2 without a fix

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA, GitHub and Red Hat.

Summary

Improper Input Validation vulnerability in Apache Tomcat. Incorrect error handling for some invalid HTTP priority headers resulted in incomplete clean-up of the failed request which created a memory leak. A large number of such requests could trigger an OutOfMemoryException resulting in a denial of service. This issue affects Apache Tomcat: from 9.0.76 through 9.0.102, from 10.1.10 through 10.1.39, from 11.0.0-M2 through 11.0.5. The following versions were EOL at the time the CVE was created but are known to be affected: 8.5.90 though 8.5.100. Users are recommended to upgrade to version 9.0.104, 10.1.40 or 11.0.6 which fix the issue.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.61322 99th percentileScored 2026-11-07
Fix Partial org.apache.tomcat:tomcat-coyote (Maven): 9.0.104, 10.1.40, 11.0.6org.apache.tomcat.embed:tomcat-embed-core (Maven): 9.0.104, 10.1.40, 11.0.6Red Hat: 11 advisoriesRed Hat: 14 fixed, 2 without a fix

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
ApacheApache Tomcat9.0.76 – 9.0.102; 10.1.10 – 10.1.39; 11.0.0-M2 – 11.0.5; 8.5.90 – 8.5.100—No fix listedCNA
—org.apache.tomcat:tomcat-coyote (Maven)9.0.76 to before 9.0.1049.0.104Patch availableGHSA-3p2h-wqq4-wf4h
—org.apache.tomcat:tomcat-coyote (Maven)10.1.10 to before 10.1.4010.1.40Patch availableGHSA-3p2h-wqq4-wf4h
—org.apache.tomcat:tomcat-coyote (Maven)11.0.0-M2 to before 11.0.611.0.6Patch availableGHSA-3p2h-wqq4-wf4h
—org.apache.tomcat.embed:tomcat-embed-core (Maven)9.0.76 to before 9.0.1049.0.104Patch availableGHSA-3p2h-wqq4-wf4h
—org.apache.tomcat.embed:tomcat-embed-core (Maven)10.1.10 to before 10.1.4010.1.40Patch availableGHSA-3p2h-wqq4-wf4h
—org.apache.tomcat.embed:tomcat-embed-core (Maven)11.0.0-M2 to before 11.0.611.0.6Patch availableGHSA-3p2h-wqq4-wf4h
—org.apache.tomcat:tomcat-coyote (Maven)8.5.0 – 8.5.100—No fix listedGHSA-3p2h-wqq4-wf4h
—org.apache.tomcat.embed:tomcat-embed-core (Maven)8.5.0 – 8.5.100—No fix listedGHSA-3p2h-wqq4-wf4h
  • Apache Tomcat VendorApache Affected 9.0.76 – 9.0.102; 10.1.10 – 10.1.39; 11.0.0-M2 – 11.0.5; 8.5.90 – 8.5.100 Fixed in — No fix listed CNA
  • org.apache.tomcat:tomcat-coyote (Maven) Vendor— Affected 9.0.76 to before 9.0.104 Fixed in 9.0.104 Patch available GHSA-3p2h-wqq4-wf4h
  • org.apache.tomcat:tomcat-coyote (Maven) Vendor— Affected 10.1.10 to before 10.1.40 Fixed in 10.1.40 Patch available GHSA-3p2h-wqq4-wf4h
  • org.apache.tomcat:tomcat-coyote (Maven) Vendor— Affected 11.0.0-M2 to before 11.0.6 Fixed in 11.0.6 Patch available GHSA-3p2h-wqq4-wf4h
  • org.apache.tomcat.embed:tomcat-embed-core (Maven) Vendor— Affected 9.0.76 to before 9.0.104 Fixed in 9.0.104 Patch available GHSA-3p2h-wqq4-wf4h
  • org.apache.tomcat.embed:tomcat-embed-core (Maven) Vendor— Affected 10.1.10 to before 10.1.40 Fixed in 10.1.40 Patch available GHSA-3p2h-wqq4-wf4h
  • org.apache.tomcat.embed:tomcat-embed-core (Maven) Vendor— Affected 11.0.0-M2 to before 11.0.6 Fixed in 11.0.6 Patch available GHSA-3p2h-wqq4-wf4h
  • org.apache.tomcat:tomcat-coyote (Maven) Vendor— Affected 8.5.0 – 8.5.100 Fixed in — No fix listed GHSA-3p2h-wqq4-wf4h
  • org.apache.tomcat.embed:tomcat-embed-core (Maven) Vendor— Affected 8.5.0 – 8.5.100 Fixed in — No fix listed GHSA-3p2h-wqq4-wf4h

CPE configurations NVD · 25

CPEVersionsRoleVendor
cpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:*9.0.76 to before 9.0.104; 10.1.10 to before 10.1.40; 11.0.1 to before 11.0.6VulnerableApache
cpe:2.3:a:apache:tomcat:11.0.0:milestone10:*:*:*:*:*:*11.0.0 milestone10VulnerableApache
cpe:2.3:a:apache:tomcat:11.0.0:milestone11:*:*:*:*:*:*11.0.0 milestone11VulnerableApache
cpe:2.3:a:apache:tomcat:11.0.0:milestone12:*:*:*:*:*:*11.0.0 milestone12VulnerableApache
cpe:2.3:a:apache:tomcat:11.0.0:milestone13:*:*:*:*:*:*11.0.0 milestone13VulnerableApache
cpe:2.3:a:apache:tomcat:11.0.0:milestone14:*:*:*:*:*:*11.0.0 milestone14VulnerableApache
cpe:2.3:a:apache:tomcat:11.0.0:milestone15:*:*:*:*:*:*11.0.0 milestone15VulnerableApache
cpe:2.3:a:apache:tomcat:11.0.0:milestone16:*:*:*:*:*:*11.0.0 milestone16VulnerableApache
cpe:2.3:a:apache:tomcat:11.0.0:milestone17:*:*:*:*:*:*11.0.0 milestone17VulnerableApache
cpe:2.3:a:apache:tomcat:11.0.0:milestone18:*:*:*:*:*:*11.0.0 milestone18VulnerableApache
  • cpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:* Versions 9.0.76 to before 9.0.104; 10.1.10 to before 10.1.40; 11.0.1 to before 11.0.6 Vulnerable ·Apache
  • cpe:2.3:a:apache:tomcat:11.0.0:milestone10:*:*:*:*:*:* Versions 11.0.0 milestone10 Vulnerable ·Apache
  • cpe:2.3:a:apache:tomcat:11.0.0:milestone11:*:*:*:*:*:* Versions 11.0.0 milestone11 Vulnerable ·Apache
  • cpe:2.3:a:apache:tomcat:11.0.0:milestone12:*:*:*:*:*:* Versions 11.0.0 milestone12 Vulnerable ·Apache
  • cpe:2.3:a:apache:tomcat:11.0.0:milestone13:*:*:*:*:*:* Versions 11.0.0 milestone13 Vulnerable ·Apache
  • cpe:2.3:a:apache:tomcat:11.0.0:milestone14:*:*:*:*:*:* Versions 11.0.0 milestone14 Vulnerable ·Apache
  • cpe:2.3:a:apache:tomcat:11.0.0:milestone15:*:*:*:*:*:* Versions 11.0.0 milestone15 Vulnerable ·Apache
  • cpe:2.3:a:apache:tomcat:11.0.0:milestone16:*:*:*:*:*:* Versions 11.0.0 milestone16 Vulnerable ·Apache
  • cpe:2.3:a:apache:tomcat:11.0.0:milestone17:*:*:*:*:*:* Versions 11.0.0 milestone17 Vulnerable ·Apache
  • cpe:2.3:a:apache:tomcat:11.0.0:milestone18:*:*:*:*:*:* Versions 11.0.0 milestone18 Vulnerable ·Apache
Show 15 more CPE
CPEVersionsRoleVendor
cpe:2.3:a:apache:tomcat:11.0.0:milestone19:*:*:*:*:*:*11.0.0 milestone19VulnerableApache
cpe:2.3:a:apache:tomcat:11.0.0:milestone2:*:*:*:*:*:*11.0.0 milestone2VulnerableApache
cpe:2.3:a:apache:tomcat:11.0.0:milestone20:*:*:*:*:*:*11.0.0 milestone20VulnerableApache
cpe:2.3:a:apache:tomcat:11.0.0:milestone21:*:*:*:*:*:*11.0.0 milestone21VulnerableApache
cpe:2.3:a:apache:tomcat:11.0.0:milestone22:*:*:*:*:*:*11.0.0 milestone22VulnerableApache
cpe:2.3:a:apache:tomcat:11.0.0:milestone23:*:*:*:*:*:*11.0.0 milestone23VulnerableApache
cpe:2.3:a:apache:tomcat:11.0.0:milestone24:*:*:*:*:*:*11.0.0 milestone24VulnerableApache
cpe:2.3:a:apache:tomcat:11.0.0:milestone25:*:*:*:*:*:*11.0.0 milestone25VulnerableApache
cpe:2.3:a:apache:tomcat:11.0.0:milestone3:*:*:*:*:*:*11.0.0 milestone3VulnerableApache
cpe:2.3:a:apache:tomcat:11.0.0:milestone4:*:*:*:*:*:*11.0.0 milestone4VulnerableApache
cpe:2.3:a:apache:tomcat:11.0.0:milestone5:*:*:*:*:*:*11.0.0 milestone5VulnerableApache
cpe:2.3:a:apache:tomcat:11.0.0:milestone6:*:*:*:*:*:*11.0.0 milestone6VulnerableApache
cpe:2.3:a:apache:tomcat:11.0.0:milestone7:*:*:*:*:*:*11.0.0 milestone7VulnerableApache
cpe:2.3:a:apache:tomcat:11.0.0:milestone8:*:*:*:*:*:*11.0.0 milestone8VulnerableApache
cpe:2.3:a:apache:tomcat:11.0.0:milestone9:*:*:*:*:*:*11.0.0 milestone9VulnerableApache
  • cpe:2.3:a:apache:tomcat:11.0.0:milestone19:*:*:*:*:*:* Versions 11.0.0 milestone19 Vulnerable ·Apache
  • cpe:2.3:a:apache:tomcat:11.0.0:milestone2:*:*:*:*:*:* Versions 11.0.0 milestone2 Vulnerable ·Apache
  • cpe:2.3:a:apache:tomcat:11.0.0:milestone20:*:*:*:*:*:* Versions 11.0.0 milestone20 Vulnerable ·Apache
  • cpe:2.3:a:apache:tomcat:11.0.0:milestone21:*:*:*:*:*:* Versions 11.0.0 milestone21 Vulnerable ·Apache
  • cpe:2.3:a:apache:tomcat:11.0.0:milestone22:*:*:*:*:*:* Versions 11.0.0 milestone22 Vulnerable ·Apache
  • cpe:2.3:a:apache:tomcat:11.0.0:milestone23:*:*:*:*:*:* Versions 11.0.0 milestone23 Vulnerable ·Apache
  • cpe:2.3:a:apache:tomcat:11.0.0:milestone24:*:*:*:*:*:* Versions 11.0.0 milestone24 Vulnerable ·Apache
  • cpe:2.3:a:apache:tomcat:11.0.0:milestone25:*:*:*:*:*:* Versions 11.0.0 milestone25 Vulnerable ·Apache
  • cpe:2.3:a:apache:tomcat:11.0.0:milestone3:*:*:*:*:*:* Versions 11.0.0 milestone3 Vulnerable ·Apache
  • cpe:2.3:a:apache:tomcat:11.0.0:milestone4:*:*:*:*:*:* Versions 11.0.0 milestone4 Vulnerable ·Apache
  • cpe:2.3:a:apache:tomcat:11.0.0:milestone5:*:*:*:*:*:* Versions 11.0.0 milestone5 Vulnerable ·Apache
  • cpe:2.3:a:apache:tomcat:11.0.0:milestone6:*:*:*:*:*:* Versions 11.0.0 milestone6 Vulnerable ·Apache
  • cpe:2.3:a:apache:tomcat:11.0.0:milestone7:*:*:*:*:*:* Versions 11.0.0 milestone7 Vulnerable ·Apache
  • cpe:2.3:a:apache:tomcat:11.0.0:milestone8:*:*:*:*:*:* Versions 11.0.0 milestone8 Vulnerable ·Apache
  • cpe:2.3:a:apache:tomcat:11.0.0:milestone9:*:*:*:*:*:* Versions 11.0.0 milestone9 Vulnerable ·Apache

Remediation

  • Fix · GHSA-3p2h-wqq4-wf4h org.apache.tomcat:tomcat-coyote (Maven) Fixed in 9.0.104 Advisory →
  • Fix · GHSA-3p2h-wqq4-wf4h org.apache.tomcat:tomcat-coyote (Maven) Fixed in 10.1.40 Advisory →
  • Fix · GHSA-3p2h-wqq4-wf4h org.apache.tomcat:tomcat-coyote (Maven) Fixed in 11.0.6 Advisory →
  • Fix · GHSA-3p2h-wqq4-wf4h org.apache.tomcat.embed:tomcat-embed-core (Maven) Fixed in 9.0.104 Advisory →
  • Fix · GHSA-3p2h-wqq4-wf4h org.apache.tomcat.embed:tomcat-embed-core (Maven) Fixed in 10.1.40 Advisory →
  • Fix · GHSA-3p2h-wqq4-wf4h org.apache.tomcat.embed:tomcat-embed-core (Maven) Fixed in 11.0.6 Advisory →

Red Hat 11 advisories

  • RHSA-2026:18537 Released 2026-05-19 · Red Hat rating Important
    tomcat security update
    • Red Hat Enterprise Linux AppStream (v. 10) tomcat-1:10.1.49-1.el10, tomcat-admin-webapps-1:10.1.49-1.el10, tomcat-docs-webapp-1:10.1.49-1.el10 +5
  • RHSA-2025:11382 Released 2025-07-17 · Red Hat rating Important
    tomcat security update
    • Red Hat Enterprise Linux AppStream E4S (v.8.8) tomcat-1:9.0.87-1.el8_8.5, tomcat-admin-webapps-1:9.0.87-1.el8_8.5, tomcat-docs-webapp-1:9.0.87-1.el8_8.5 +5
    • Red Hat Enterprise Linux AppStream TUS (v.8.8) tomcat-1:9.0.87-1.el8_8.5, tomcat-admin-webapps-1:9.0.87-1.el8_8.5, tomcat-docs-webapp-1:9.0.87-1.el8_8.5 +5
  • RHSA-2025:11381 Released 2025-07-17 · Red Hat rating Important
    tomcat security update
    • Red Hat Enterprise Linux AppStream E4S (v.9.2) tomcat-1:9.0.87-1.el9_2.4, tomcat-admin-webapps-1:9.0.87-1.el9_2.4, tomcat-docs-webapp-1:9.0.87-1.el9_2.4 +5
Show 8 more Red Hat advisories
  • RHSA-2025:11333 Released 2025-07-16 · Red Hat rating Important
    tomcat security update
    • Red Hat Enterprise Linux AppStream (v. 8) tomcat-1:9.0.87-1.el8_10.4, tomcat-admin-webapps-1:9.0.87-1.el8_10.4, tomcat-docs-webapp-1:9.0.87-1.el8_10.4 +5
  • RHSA-2025:11335 Released 2025-07-16 · Red Hat rating Important
    tomcat security update
    • Red Hat Enterprise Linux AppStream (v. 9) tomcat-1:9.0.87-3.el9_6.1, tomcat-admin-webapps-1:9.0.87-3.el9_6.1, tomcat-docs-webapp-1:9.0.87-3.el9_6.1 +5
  • RHSA-2025:11334 Released 2025-07-16 · Red Hat rating Important
    tomcat security update
    • Red Hat Enterprise Linux AppStream EUS (v.9.4) tomcat-1:9.0.87-1.el9_4.4, tomcat-admin-webapps-1:9.0.87-1.el9_4.4, tomcat-docs-webapp-1:9.0.87-1.el9_4.4 +5
  • RHSA-2025:11332 Released 2025-07-16 · Red Hat rating Important
    tomcat9 security update
    • Red Hat Enterprise Linux AppStream (v. 10) tomcat9-1:9.0.87-5.el10_0.1, tomcat9-admin-webapps-1:9.0.87-5.el10_0.1, tomcat9-docs-webapp-1:9.0.87-5.el10_0.1 +5
  • RHSA-2025:4521 Released 2025-05-08 · Red Hat rating Important
    Red Hat JBoss Web Server 5.8.4 release and security update
    • Red Hat JBoss Web Server 5.8 for RHEL 7 Server jws5-tomcat-9.0.87-11.redhat_00010.1.el7jws, jws5-tomcat-admin-webapps-9.0.87-11.redhat_00010.1.el7jws, jws5-tomcat-docs-webapp-9.0.87-11.redhat_00010.1.el7jws +9
    • Red Hat JBoss Web Server 5.8 for RHEL 8 jws5-tomcat-9.0.87-11.redhat_00010.1.el8jws, jws5-tomcat-admin-webapps-9.0.87-11.redhat_00010.1.el8jws, jws5-tomcat-docs-webapp-9.0.87-11.redhat_00010.1.el8jws +7
    • Red Hat JBoss Web Server 5.8 for RHEL 9 jws5-tomcat-9.0.87-11.redhat_00010.1.el9jws, jws5-tomcat-admin-webapps-9.0.87-11.redhat_00010.1.el9jws, jws5-tomcat-docs-webapp-9.0.87-11.redhat_00010.1.el9jws +7
  • RHSA-2025:4522 Released 2025-05-08 · Red Hat rating Important
    Red Hat JBoss Web Server 5.8.4 release and security update
    • Red Hat JBoss Web Server 5
  • RHSA-2025:3608 Released 2025-04-07 · Red Hat rating Important
    Red Hat JBoss Web Server 6.1.0 release and security update
    • Red Hat JBoss Web Server 6.1 for RHEL 8 jws6-tomcat-10.1.36-6.redhat_00007.1.el8jws, jws6-tomcat-admin-webapps-10.1.36-6.redhat_00007.1.el8jws, jws6-tomcat-docs-webapp-10.1.36-6.redhat_00007.1.el8jws +9
    • Red Hat JBoss Web Server 6.1 for RHEL 9 jws6-tomcat-10.1.36-6.redhat_00007.1.el9jws, jws6-tomcat-admin-webapps-10.1.36-6.redhat_00007.1.el9jws, jws6-tomcat-docs-webapp-10.1.36-6.redhat_00007.1.el9jws +9
  • RHSA-2025:3609 Released 2025-04-07 · Red Hat rating Important
    Red Hat JBoss Web Server 6.1.0 release and security update
    • Red Hat JBoss Web Server 6

Vendor assessments

Red Hat

Red Hat rating: Important. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Enterprise Linux 6AffectedNo fix planned: Out of support scope
Red Hat Enterprise Linux 7AffectedNo fix planned: Out of support scope
Red Hat Enterprise Linux AppStream (v. 10)Fixed RHSA-2025:11332, RHSA-2026:18537
Red Hat Enterprise Linux AppStream (v. 8)Fixed RHSA-2025:11333
Red Hat Enterprise Linux AppStream (v. 9)Fixed RHSA-2025:11335
Red Hat Enterprise Linux AppStream E4S (v.8.8)Fixed RHSA-2025:11382
Red Hat Enterprise Linux AppStream E4S (v.9.2)Fixed RHSA-2025:11381
Red Hat Enterprise Linux AppStream EUS (v.9.4)Fixed RHSA-2025:11334
Red Hat Enterprise Linux AppStream TUS (v.8.8)Fixed RHSA-2025:11382
Red Hat JBoss Web Server 5Fixed RHSA-2025:4522
Red Hat JBoss Web Server 5.8 for RHEL 7 ServerFixed RHSA-2025:4521
Red Hat JBoss Web Server 5.8 for RHEL 8Fixed RHSA-2025:4521
Red Hat JBoss Web Server 5.8 for RHEL 9Fixed RHSA-2025:4521
Red Hat JBoss Web Server 6Fixed RHSA-2025:3609
Red Hat JBoss Web Server 6.1 for RHEL 8Fixed RHSA-2025:3608
Red Hat JBoss Web Server 6.1 for RHEL 9Fixed RHSA-2025:3608
Not affected: 2 products
  • Red Hat Enterprise Linux 8
  • Red Hat Enterprise Linux 9

Timeline

  1. 2026-10-02 Threatist record created from CVE-2025-31650
  2. 2026-10-03 Alias added: GHSA-3p2h-wqq4-wf4h
  3. 2026-10-09 Fix available: RHSA-2025:3609 · Red Hat
  4. 2026-11-05 Fix available: Red Hat JBoss Web Server 6 · Red Hat

References

Advisory 3

Other 14

  • TI-2025-18529 Apache Tomcat: Potential RCE and/or information disclosure and/or information corruption with partial PUT KEVCVSS 3.1CRITICAL 10.0
  • TI-2020-01862 Improper privilege management in Apache Tomcat KEVCVSS 3.1CRITICAL 9.8
  • TI-2016-07192 Improper access control in Apache Tomcat KEVCVSS 3.1CRITICAL 9.8
  • TI-2017-09342 Unrestricted file upload in Apache Tomcat KEVCVSS 3.1HIGH 8.1
  • TI-2017-09340 Unrestricted file upload in Apache Tomcat KEVCVSS 3.1HIGH 8.1
  • TI-2026-26741 Apache Tomcat: Fix for CVE-2026-29146 allowed bypass of EncryptInterceptor KEVCVSS 3.1HIGH 7.5
See all 273 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences