CVE catalog

CVE-2026-24880

Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling') vulnerability in Apache Tomcat via invalid chunk extension. This issue affects Apache Tomcat: from 11.0.0-M1 through 1

[CVE catalog]

Severity
High · CVSS 7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Published
Source
[NVD] · [CVE record]
EPSS
0.70% · Oct 25, 2026

Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling') vulnerability in Apache Tomcat via invalid chunk extension. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.18, from 10.1.0-M1 through 10.1.52, from 9.0.0.M1 through 9.0.115, from 8.5.0 through 8.5.100, from 7.0.0 through 7.0.109. Other, unsupported versions may also be affected. Users are recommended to upgrade to version 11.0.20, 10.1.52 or 9.0.116, which fix the issue.

Vulnerable and fixed packages

Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.

DistributionPackageReleaseVersionStatus
Debiantomcat9sid9.0.122-1fixed
Debiantomcat9forky9.0.122-1fixed
Debiantomcat9trixie9.0.95-1fixed
Debiantomcat9bookworm9.0.70-2fixed
Debiantomcat10sid10.1.60-1fixed
Debiantomcat10forky10.1.60-1fixed
Debiantomcat10trixie10.1.55-1~deb13u1fixed
Debiantomcat10trixie-security10.1.55-1~deb13u1fixed
Debiantomcat10bookworm10.1.55-1~deb12u1fixed
Debiantomcat10bookworm-security10.1.55-1~deb12u1fixed
CpetomcatNot reported9.0.116fixed
CpetomcatNot reported10.1.53fixed
CpetomcatNot reported11.0.20fixed
Ubuntutomcat6pro6.0.37-1vulnerable
Ubuntutomcat6pro6.0.39-1vulnerable
Ubuntutomcat6pro6.0.39-1ubuntu0.1vulnerable
Ubuntutomcat6pro6.0.39-1ubuntu0.1+esm1vulnerable
Ubuntutomcat6pro6.0.39-1ubuntu0.1+esm2vulnerable
Ubuntutomcat6pro6.0.39-1ubuntu0.1+esm3vulnerable
Ubuntutomcat7pro7.0.64-1vulnerable
Ubuntutomcat7pro7.0.68-1vulnerable
Ubuntutomcat7pro7.0.68-1ubuntu0.1vulnerable
Ubuntutomcat7pro7.0.68-1ubuntu0.3vulnerable
Ubuntutomcat7pro7.0.68-1ubuntu0.4vulnerable
Ubuntutomcat7pro7.0.68-1ubuntu0.4+esm1vulnerable
Ubuntutomcat7pro7.0.68-1ubuntu0.4+esm2vulnerable
Ubuntutomcat7pro7.0.68-1ubuntu0.4+esm3vulnerable
Ubuntutomcat7pro7.0.68-1ubuntu0.4+esm4vulnerable
Ubuntutomcat8pro8.5.21-1ubuntu1vulnerable
Ubuntutomcat8pro8.5.29-1vulnerable
Ubuntutomcat8pro8.5.30-1vulnerable
Ubuntutomcat8pro8.5.30-1ubuntu1vulnerable
Ubuntutomcat8pro8.5.30-1ubuntu1.2vulnerable
Ubuntutomcat8pro8.5.30-1ubuntu1.3vulnerable
Ubuntutomcat8pro8.5.30-1ubuntu1.4vulnerable
Ubuntutomcat8pro8.5.39-1ubuntu1~18.04.1vulnerable
Ubuntutomcat8pro8.5.39-1ubuntu1~18.04.2vulnerable
Ubuntutomcat8pro8.5.39-1ubuntu1~18.04.3vulnerable
Ubuntutomcat8pro8.5.39-1ubuntu1~18.04.3+esm1vulnerable
Ubuntutomcat8pro8.5.39-1ubuntu1~18.04.3+esm2vulnerable
Ubuntutomcat8pro8.5.39-1ubuntu1~18.04.3+esm3vulnerable
Ubuntutomcat8pro8.5.39-1ubuntu1~18.04.3+esm4vulnerable
Ubuntutomcat8pro8.5.39-1ubuntu1~18.04.3+esm5vulnerable
Ubuntutomcat8pro8.5.39-1ubuntu1~18.04.3+esm6vulnerable
Ubuntutomcat9pro9.0.43-3vulnerable
Ubuntutomcat9pro9.0.54-1vulnerable
Ubuntutomcat9pro9.0.55-1vulnerable
Ubuntutomcat9pro9.0.58-1vulnerable
Ubuntutomcat9pro9.0.58-1ubuntu0.1vulnerable
Ubuntutomcat9pro9.0.58-1ubuntu0.1+esm1vulnerable
Ubuntutomcat9pro9.0.58-1ubuntu0.1+esm2vulnerable
Ubuntutomcat9pro9.0.58-1ubuntu0.1+esm3vulnerable
Ubuntutomcat9pro9.0.58-1ubuntu0.1+esm4vulnerable
Ubuntutomcat9pro9.0.58-1ubuntu0.2vulnerable
Ubuntutomcat9pro9.0.58-1ubuntu0.2+esm1vulnerable
Ubuntutomcat9pro9.0.58-1ubuntu0.2+esm2vulnerable
Ubuntutomcat9pro9.0.58-1ubuntu0.2+esm3vulnerable
Ubuntutomcat9pro9.0.58-1ubuntu0.2+esm4vulnerable
Ubuntutomcat1024.0410.1.10-1vulnerable
Ubuntutomcat1024.0410.1.14-1vulnerable
Ubuntutomcat1024.0410.1.15-1vulnerable
Ubuntutomcat1024.0410.1.16-1vulnerable
Ubuntutomcat1024.0410.1.16-1ubuntu0.1~esm1vulnerable
Ubuntutomcat1024.0410.1.16-1ubuntu0.1~esm2vulnerable
Ubuntutomcat1024.0410.1.16-1ubuntu0.1~esm3vulnerable
Ubuntutomcat1024.0410.1.16-1ubuntu0.1~esm4vulnerable
Ubuntutomcat1024.0410.1.55-1ubuntu2~24.04.1vulnerable
Ubuntutomcat924.049.0.70-1ubuntu1vulnerable
Ubuntutomcat924.049.0.70-2vulnerable
Ubuntutomcat924.049.0.70-2ubuntu0.1vulnerable
Ubuntutomcat924.049.0.70-2ubuntu0.1+esm1vulnerable
Ubuntutomcat924.049.0.70-2ubuntu0.1+esm2vulnerable
Ubuntutomcat924.049.0.70-2ubuntu0.1+esm3vulnerable
Ubuntutomcat924.049.0.118-1~24.04.1vulnerable
Ubuntutomcat1025.1010.1.35-1vulnerable
Ubuntutomcat1025.1010.1.40-1vulnerable
Ubuntutomcat1025.1010.1.40-1ubuntu1vulnerable
Ubuntutomcat1025.1010.1.40-1ubuntu1.25.10.1vulnerable
Ubuntutomcat1125.1011.0.6-1vulnerable
Ubuntutomcat925.109.0.70-2ubuntu1.1vulnerable
Ubuntutomcat925.109.0.70-2ubuntu2vulnerable
Ubuntutomcat925.109.0.70-2ubuntu3vulnerable
Ubuntutomcat925.109.0.95-1ubuntu1vulnerable
Ubuntutomcat925.109.0.95-1ubuntu1.1vulnerable
Ubuntutomcat1026.0410.1.40-1ubuntu1vulnerable
Ubuntutomcat1026.0410.1.40-1ubuntu1.26.04.1vulnerable
Ubuntutomcat1026.0410.1.55-1ubuntu2~26.04.1vulnerable
Ubuntutomcat926.049.0.95-1ubuntu1vulnerable
Ubuntutomcat926.049.0.111-1vulnerable
Ubuntutomcat926.049.0.115-1vulnerable
Ubuntutomcat926.049.0.115-1ubuntu0.1vulnerable
Ubuntutomcat926.049.0.118-1~26.04.1vulnerable
Ubuntutomcat1126.0411.0.6-1vulnerable
Ubuntutomcat1126.0411.0.11-1vulnerable
Ubuntutomcat1126.0411.0.15-1vulnerable
Ubuntutomcat1126.0411.0.18-1vulnerable
Ubuntutomcat1126.0411.0.18-1ubuntu0.1~esm1vulnerable
Ubuntutomcat1126.0411.0.22-2ubuntu2~26.04.1vulnerable
Opensusetomcattumbleweed9.0.117-1.1fixed
Opensusetomcat10tumbleweed10.1.54-1.1fixed
Opensusetomcat11tumbleweed11.0.21-1.1fixed
CpetomcatNot reported11.0.20fixed

Fixed-version evidence

DistributionPackageTypeReleaseFixed versionUrgencyOriginBugs
Debiantomcat9sourcesid9.0.70-2not yet assignedNot reportedNot reported
Debiantomcat9sourceforky9.0.70-2not yet assignedNot reportedNot reported
Debiantomcat9sourcetrixie9.0.70-2not yet assignedNot reportedNot reported
Debiantomcat9sourcebookworm9.0.70-2not yet assignedNot reportedNot reported
Debiantomcat10sourcesid10.1.54-1not yet assignedNot reported[1133356]
Debiantomcat10sourceforky10.1.54-1not yet assignedNot reported[1133356]
Debiantomcat10sourcetrixie10.1.55-1~deb13u1not yet assignedNot reported[1133356]
Debiantomcat10sourcebookworm10.1.55-1~deb12u1not yet assignedNot reported[1133356]
CpetomcatcpeNot reported9.0.116Not reportedNot reportedNot reported
CpetomcatcpeNot reported10.1.53Not reportedNot reportedNot reported
CpetomcatcpeNot reported11.0.20Not reportedNot reportedNot reported
Opensusetomcatrpmtumbleweed9.0.117-1.1Not reportedOPENSUSE-SU-2026:10547-1Not reported
Opensusetomcat10rpmtumbleweed10.1.54-1.1Not reportedOPENSUSE-SU-2026:10548-1Not reported
Opensusetomcat11rpmtumbleweed11.0.21-1.1Not reportedOPENSUSE-SU-2026:10549-1Not reported
CpetomcatcpeNot reported11.0.20Not reportedNVD-CVE-2026-24880Not reported

[Debian bug #1133356]

OpenFactory catalog packages

[Debian 12 (Bookworm)]

  • Source package: [tomcat10]

    Details (6)
    • 10.1.55-1~deb12u1 · all · bookworm

      Fixed · Fixed: 10.1.55-1~deb12u1

      nvd · tomcat10 · debian · bookworm; nvd · tomcat10 · debian · 12

    • 10.1.55-1~deb12u1 · all · bookworm

      Fixed · Fixed: 10.1.55-1~deb12u1

      nvd · tomcat10 · debian · bookworm; nvd · tomcat10 · debian · 12

    • 10.1.40-1~bpo12+1 · all · bookworm-backports

      Affected · Fixed: 10.1.55-1~deb12u1

      nvd · tomcat10 · debian · bookworm; nvd · tomcat10 · debian · 12

    • 10.1.40-1~bpo12+1 · all · bookworm-backports

      Affected · Fixed: 10.1.55-1~deb12u1

      nvd · tomcat10 · debian · bookworm; nvd · tomcat10 · debian · 12

    • 10.1.55-1~deb12u1 · all · bookworm-security

      Fixed · Fixed: 10.1.55-1~deb12u1

      nvd · tomcat10 · debian · bookworm; nvd · tomcat10 · debian · 12

    • 10.1.55-1~deb12u1 · all · bookworm-security

      Fixed · Fixed: 10.1.55-1~deb12u1

      nvd · tomcat10 · debian · bookworm; nvd · tomcat10 · debian · 12

  • Source package: [tomcat10]

    Details (6)
    • 10.1.55-1~deb12u1 · all · bookworm

      Fixed · Fixed: 10.1.55-1~deb12u1

      nvd · tomcat10 · debian · bookworm; nvd · tomcat10 · debian · 12

    • 10.1.55-1~deb12u1 · all · bookworm

      Fixed · Fixed: 10.1.55-1~deb12u1

      nvd · tomcat10 · debian · bookworm; nvd · tomcat10 · debian · 12

    • 10.1.40-1~bpo12+1 · all · bookworm-backports

      Affected · Fixed: 10.1.55-1~deb12u1

      nvd · tomcat10 · debian · bookworm; nvd · tomcat10 · debian · 12

    • 10.1.40-1~bpo12+1 · all · bookworm-backports

      Affected · Fixed: 10.1.55-1~deb12u1

      nvd · tomcat10 · debian · bookworm; nvd · tomcat10 · debian · 12

    • 10.1.55-1~deb12u1 · all · bookworm-security

      Fixed · Fixed: 10.1.55-1~deb12u1

      nvd · tomcat10 · debian · bookworm; nvd · tomcat10 · debian · 12

    • 10.1.55-1~deb12u1 · all · bookworm-security

      Fixed · Fixed: 10.1.55-1~deb12u1

      nvd · tomcat10 · debian · bookworm; nvd · tomcat10 · debian · 12

  • [tomcat10]Affected
    Details (6)
    • 10.1.55-1~deb12u1 · all · bookworm

      Fixed · Fixed: 10.1.55-1~deb12u1

      nvd · tomcat10 · debian · bookworm; nvd · tomcat10 · debian · 12

    • 10.1.55-1~deb12u1 · all · bookworm

      Fixed · Fixed: 10.1.55-1~deb12u1

      nvd · tomcat10 · debian · bookworm; nvd · tomcat10 · debian · 12

    • 10.1.40-1~bpo12+1 · all · bookworm-backports

      Affected · Fixed: 10.1.55-1~deb12u1

      nvd · tomcat10 · debian · bookworm; nvd · tomcat10 · debian · 12

    • 10.1.40-1~bpo12+1 · all · bookworm-backports

      Affected · Fixed: 10.1.55-1~deb12u1

      nvd · tomcat10 · debian · bookworm; nvd · tomcat10 · debian · 12

    • 10.1.55-1~deb12u1 · all · bookworm-security

      Fixed · Fixed: 10.1.55-1~deb12u1

      nvd · tomcat10 · debian · bookworm; nvd · tomcat10 · debian · 12

    • 10.1.55-1~deb12u1 · all · bookworm-security

      Fixed · Fixed: 10.1.55-1~deb12u1

      nvd · tomcat10 · debian · bookworm; nvd · tomcat10 · debian · 12

  • [tomcat10-admin]Affected

    Source package: [tomcat10]

    Details (6)
    • 10.1.55-1~deb12u1 · all · bookworm

      Fixed · Fixed: 10.1.55-1~deb12u1

      nvd · tomcat10 · debian · bookworm; nvd · tomcat10 · debian · 12

    • 10.1.55-1~deb12u1 · all · bookworm

      Fixed · Fixed: 10.1.55-1~deb12u1

      nvd · tomcat10 · debian · bookworm; nvd · tomcat10 · debian · 12

    • 10.1.40-1~bpo12+1 · all · bookworm-backports

      Affected · Fixed: 10.1.55-1~deb12u1

      nvd · tomcat10 · debian · bookworm; nvd · tomcat10 · debian · 12

    • 10.1.40-1~bpo12+1 · all · bookworm-backports

      Affected · Fixed: 10.1.55-1~deb12u1

      nvd · tomcat10 · debian · bookworm; nvd · tomcat10 · debian · 12

    • 10.1.55-1~deb12u1 · all · bookworm-security

      Fixed · Fixed: 10.1.55-1~deb12u1

      nvd · tomcat10 · debian · bookworm; nvd · tomcat10 · debian · 12

    • 10.1.55-1~deb12u1 · all · bookworm-security

      Fixed · Fixed: 10.1.55-1~deb12u1

      nvd · tomcat10 · debian · bookworm; nvd · tomcat10 · debian · 12

  • [tomcat10-common]Affected

    Source package: [tomcat10]

    Details (6)
    • 10.1.55-1~deb12u1 · all · bookworm

      Fixed · Fixed: 10.1.55-1~deb12u1

      nvd · tomcat10 · debian · bookworm; nvd · tomcat10 · debian · 12

    • 10.1.55-1~deb12u1 · all · bookworm

      Fixed · Fixed: 10.1.55-1~deb12u1

      nvd · tomcat10 · debian · bookworm; nvd · tomcat10 · debian · 12

    • 10.1.40-1~bpo12+1 · all · bookworm-backports

      Affected · Fixed: 10.1.55-1~deb12u1

      nvd · tomcat10 · debian · bookworm; nvd · tomcat10 · debian · 12

    • 10.1.40-1~bpo12+1 · all · bookworm-backports

      Affected · Fixed: 10.1.55-1~deb12u1

      nvd · tomcat10 · debian · bookworm; nvd · tomcat10 · debian · 12

    • 10.1.55-1~deb12u1 · all · bookworm-security

      Fixed · Fixed: 10.1.55-1~deb12u1

      nvd · tomcat10 · debian · bookworm; nvd · tomcat10 · debian · 12

    • 10.1.55-1~deb12u1 · all · bookworm-security

      Fixed · Fixed: 10.1.55-1~deb12u1

      nvd · tomcat10 · debian · bookworm; nvd · tomcat10 · debian · 12

  • [tomcat10-docs]Affected

    Source package: [tomcat10]

    Details (6)
    • 10.1.55-1~deb12u1 · all · bookworm

      Fixed · Fixed: 10.1.55-1~deb12u1

      nvd · tomcat10 · debian · bookworm; nvd · tomcat10 · debian · 12

    • 10.1.55-1~deb12u1 · all · bookworm

      Fixed · Fixed: 10.1.55-1~deb12u1

      nvd · tomcat10 · debian · bookworm; nvd · tomcat10 · debian · 12

    • 10.1.40-1~bpo12+1 · all · bookworm-backports

      Affected · Fixed: 10.1.55-1~deb12u1

      nvd · tomcat10 · debian · bookworm; nvd · tomcat10 · debian · 12

    • 10.1.40-1~bpo12+1 · all · bookworm-backports

      Affected · Fixed: 10.1.55-1~deb12u1

      nvd · tomcat10 · debian · bookworm; nvd · tomcat10 · debian · 12

    • 10.1.55-1~deb12u1 · all · bookworm-security

      Fixed · Fixed: 10.1.55-1~deb12u1

      nvd · tomcat10 · debian · bookworm; nvd · tomcat10 · debian · 12

    • 10.1.55-1~deb12u1 · all · bookworm-security

      Fixed · Fixed: 10.1.55-1~deb12u1

      nvd · tomcat10 · debian · bookworm; nvd · tomcat10 · debian · 12

  • Source package: [tomcat10]

    Details (6)
    • 10.1.55-1~deb12u1 · all · bookworm

      Fixed · Fixed: 10.1.55-1~deb12u1

      nvd · tomcat10 · debian · bookworm; nvd · tomcat10 · debian · 12

    • 10.1.55-1~deb12u1 · all · bookworm

      Fixed · Fixed: 10.1.55-1~deb12u1

      nvd · tomcat10 · debian · bookworm; nvd · tomcat10 · debian · 12

    • 10.1.40-1~bpo12+1 · all · bookworm-backports

      Affected · Fixed: 10.1.55-1~deb12u1

      nvd · tomcat10 · debian · bookworm; nvd · tomcat10 · debian · 12

    • 10.1.40-1~bpo12+1 · all · bookworm-backports

      Affected · Fixed: 10.1.55-1~deb12u1

      nvd · tomcat10 · debian · bookworm; nvd · tomcat10 · debian · 12

    • 10.1.55-1~deb12u1 · all · bookworm-security

      Fixed · Fixed: 10.1.55-1~deb12u1

      nvd · tomcat10 · debian · bookworm; nvd · tomcat10 · debian · 12

    • 10.1.55-1~deb12u1 · all · bookworm-security

      Fixed · Fixed: 10.1.55-1~deb12u1

      nvd · tomcat10 · debian · bookworm; nvd · tomcat10 · debian · 12

  • [tomcat10-user]Affected

    Source package: [tomcat10]

    Details (6)
    • 10.1.55-1~deb12u1 · all · bookworm

      Fixed · Fixed: 10.1.55-1~deb12u1

      nvd · tomcat10 · debian · bookworm; nvd · tomcat10 · debian · 12

    • 10.1.55-1~deb12u1 · all · bookworm

      Fixed · Fixed: 10.1.55-1~deb12u1

      nvd · tomcat10 · debian · bookworm; nvd · tomcat10 · debian · 12

    • 10.1.40-1~bpo12+1 · all · bookworm-backports

      Affected · Fixed: 10.1.55-1~deb12u1

      nvd · tomcat10 · debian · bookworm; nvd · tomcat10 · debian · 12

    • 10.1.40-1~bpo12+1 · all · bookworm-backports

      Affected · Fixed: 10.1.55-1~deb12u1

      nvd · tomcat10 · debian · bookworm; nvd · tomcat10 · debian · 12

    • 10.1.55-1~deb12u1 · all · bookworm-security

      Fixed · Fixed: 10.1.55-1~deb12u1

      nvd · tomcat10 · debian · bookworm; nvd · tomcat10 · debian · 12

    • 10.1.55-1~deb12u1 · all · bookworm-security

      Fixed · Fixed: 10.1.55-1~deb12u1

      nvd · tomcat10 · debian · bookworm; nvd · tomcat10 · debian · 12

[openSUSE Tumbleweed]

  • Source package: [tomcat10]

    Details (1)
    • 10.1.57-2.1 · noarch · tumbleweed

      Unknown · Fixed: 10.1.54-1.1

      Version impact unknown

      nvd · tomcat10 · opensuse · tumbleweed

  • [tomcat10-doc]Unknown

    Source package: [tomcat10]

    Details (1)
    • 10.1.57-2.1 · noarch · tumbleweed

      Unknown · Fixed: 10.1.54-1.1

      Version impact unknown

      nvd · tomcat10 · opensuse · tumbleweed

  • Source package: [tomcat10]

    Details (1)
    • 10.1.57-2.1 · noarch · tumbleweed

      Unknown · Fixed: 10.1.54-1.1

      Version impact unknown

      nvd · tomcat10 · opensuse · tumbleweed

  • Source package: [tomcat10]

    Details (1)
    • 10.1.57-2.1 · noarch · tumbleweed

      Unknown · Fixed: 10.1.54-1.1

      Version impact unknown

      nvd · tomcat10 · opensuse · tumbleweed

  • Source package: [tomcat10]

    Details (1)
    • 10.1.57-2.1 · noarch · tumbleweed

      Unknown · Fixed: 10.1.54-1.1

      Version impact unknown

      nvd · tomcat10 · opensuse · tumbleweed

  • Source package: [tomcat10]

    Details (1)
    • 10.1.57-2.1 · noarch · tumbleweed

      Unknown · Fixed: 10.1.54-1.1

      Version impact unknown

      nvd · tomcat10 · opensuse · tumbleweed

  • [tomcat10-jsvc]Unknown

    Source package: [tomcat10]

    Details (1)
    • 10.1.57-2.1 · noarch · tumbleweed

      Unknown · Fixed: 10.1.54-1.1

      Version impact unknown

      nvd · tomcat10 · opensuse · tumbleweed

  • [tomcat10-lib]Unknown

    Source package: [tomcat10]

    Details (1)
    • 10.1.57-2.1 · noarch · tumbleweed

      Unknown · Fixed: 10.1.54-1.1

      Version impact unknown

      nvd · tomcat10 · opensuse · tumbleweed

  • Source package: [tomcat10]

    Details (1)
    • 10.1.57-2.1 · noarch · tumbleweed

      Unknown · Fixed: 10.1.54-1.1

      Version impact unknown

      nvd · tomcat10 · opensuse · tumbleweed

  • Source package: [tomcat10]

    Details (1)
    • 10.1.57-2.1 · noarch · tumbleweed

      Unknown · Fixed: 10.1.54-1.1

      Version impact unknown

      nvd · tomcat10 · opensuse · tumbleweed

  • Source package: [tomcat11]

    Details (1)
    • 11.0.24-2.1 · noarch · tumbleweed

      Unknown · Fixed: 11.0.21-1.1

      Version impact unknown

      nvd · tomcat11 · opensuse · tumbleweed

  • [tomcat11-doc]Unknown

    Source package: [tomcat11]

    Details (1)
    • 11.0.24-2.1 · noarch · tumbleweed

      Unknown · Fixed: 11.0.21-1.1

      Version impact unknown

      nvd · tomcat11 · opensuse · tumbleweed

Next results

Observed:

References