CVE catalog

CVE-2026-59173

Uncontrolled Resource Consumption vulnerability in…

[CVE catalog]

Uncontrolled Resource Consumption vulnerability in Apache Traffic Server. This issue affects Apache Traffic Server: from 9.0.0 through 9.1.13, from 10.0.0 through 10.1.2. Users are recommended to upgrade to version 9.1.14 or 10.1.3, which fixes the issue.

Severity
High · CVSS 7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Published
Source
[NVD] · [CVE record]
EPSS
0.74% · Oct 27, 2026

Projects and upstream resources

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.

Distribution / releasePackageVersionStatusSource
Ubuntuprotrafficserver8.1.1+ds-1.1Affected[UBUNTU-CVE-2026-59173]
Ubuntuprotrafficserver9.1.1+ds-2build1Affected[UBUNTU-CVE-2026-59173]
Ubuntuprotrafficserver9.1.1+ds-2ubuntu0.1Affected[UBUNTU-CVE-2026-59173]
Ubuntuprotrafficserver9.1.1+ds-2ubuntu0.1+esm1Affected[UBUNTU-CVE-2026-59173]
Ubuntuprotrafficserver9.1.1+ds-2ubuntu0.1~esm1Affected[UBUNTU-CVE-2026-59173]
Debianbookworm-securitytrafficserver9.2.5+ds-0+deb12u4Affected[CVE-2026-59173]
DebianbookwormtrafficserverNot reportedAffectedDistribution reports no fix[CVE-2026-59173]
Debianbookwormtrafficserver9.2.5+ds-0+deb12u4Affected[CVE-2026-59173]
Ubuntu24.04trafficserver9.2.1+ds-1build1Affected[UBUNTU-CVE-2026-59173]
Ubuntu24.04trafficserver9.2.2+ds-1Affected[UBUNTU-CVE-2026-59173]
Ubuntu24.04trafficserver9.2.3+ds-1Affected[UBUNTU-CVE-2026-59173]
Ubuntu24.04trafficserver9.2.3+ds-1+deb12u1Affected[UBUNTU-CVE-2026-59173]

Showing 12 observations. All 23 observations, including unknown and conflicting reports, are available below.

Provider details and historical evidence
Distribution / releasePackageVersionStatusSource
UnknownRelease not reportedtrafficserverNot reportedUnknownSource applicability is not establishedProvider not reported
DebianbookwormtrafficserverNot reportedAffectedDistribution reports no fix[CVE-2026-59173]
Debianbookwormtrafficserver9.2.5+ds-0+deb12u4Affected[CVE-2026-59173]
Debianbookworm-securitytrafficserver9.2.5+ds-0+deb12u4Affected[CVE-2026-59173]
Ubuntu16.04trafficserver5.3.0-2ubuntu1Affected[UBUNTU-CVE-2026-59173]
Ubuntu16.04trafficserver5.3.0-2ubuntu2Affected[UBUNTU-CVE-2026-59173]
Ubuntu18.04trafficserver7.0.0-5Affected[UBUNTU-CVE-2026-59173]
Ubuntu18.04trafficserver7.1.2+ds-2Affected[UBUNTU-CVE-2026-59173]
Ubuntu18.04trafficserver7.1.2+ds-2build1Affected[UBUNTU-CVE-2026-59173]
Ubuntu18.04trafficserver7.1.2+ds-3Affected[UBUNTU-CVE-2026-59173]
Ubuntu24.04trafficserver9.2.1+ds-1build1Affected[UBUNTU-CVE-2026-59173]
Ubuntu24.04trafficserver9.2.2+ds-1Affected[UBUNTU-CVE-2026-59173]
Ubuntu24.04trafficserver9.2.3+ds-1Affected[UBUNTU-CVE-2026-59173]
Ubuntu24.04trafficserver9.2.3+ds-1+deb12u1Affected[UBUNTU-CVE-2026-59173]
Ubuntu24.04trafficserver9.2.3+ds-1+deb12u1build1Affected[UBUNTU-CVE-2026-59173]
Ubuntu24.04trafficserver9.2.3+ds-1+deb12u1build3Affected[UBUNTU-CVE-2026-59173]
Ubuntu24.04trafficserver9.2.3+ds-1+deb12u1build4Affected[UBUNTU-CVE-2026-59173]
Ubuntu24.04trafficserver9.2.3+ds-1+deb12u1ubuntu0.1Affected[UBUNTU-CVE-2026-59173]
Ubuntuprotrafficserver8.1.1+ds-1.1Affected[UBUNTU-CVE-2026-59173]
Ubuntuprotrafficserver9.1.1+ds-2build1Affected[UBUNTU-CVE-2026-59173]
Ubuntuprotrafficserver9.1.1+ds-2ubuntu0.1Affected[UBUNTU-CVE-2026-59173]
Ubuntuprotrafficserver9.1.1+ds-2ubuntu0.1+esm1Affected[UBUNTU-CVE-2026-59173]
Ubuntuprotrafficserver9.1.1+ds-2ubuntu0.1~esm1Affected[UBUNTU-CVE-2026-59173]
Original provider fields
{
  "package_releases": [
    {
      "name": "trafficserver",
      "status": "vulnerable",
      "release": "bookworm",
      "version": "9.2.5+ds-0+deb12u4"
    },
    {
      "name": "trafficserver",
      "status": "vulnerable",
      "release": "bookworm-security",
      "version": "9.2.5+ds-0+deb12u4"
    }
  ],
  "fixed_versions": [
    {
      "bug": 1142387,
      "name": "trafficserver",
      "type": "source",
      "origin": null,
      "release": "bookworm",
      "urgency": "not yet assigned",
      "fixed_version": ""
    }
  ],
  "distribution_packages": [
    {
      "name": "trafficserver",
      "fixed_version": "not yet fixed",
      "applicability_unknown": true
    },
    {
      "name": "trafficserver",
      "distro": "ubuntu",
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "0"
            }
          ]
        }
      ],
      "release": "16.04",
      "versions": [
        "5.3.0-2ubuntu1",
        "5.3.0-2ubuntu2"
      ],
      "ecosystem": "deb",
      "provider_url": "https://osv.dev/vulnerability/UBUNTU-CVE-2026-59173",
      "fixed_version": "",
      "provider_source": "pypi",
      "provider_record_id": "UBUNTU-CVE-2026-59173",
      "provider_updated_at": "2026-07-29T10:18:19.244665612Z"
    },
    {
      "name": "trafficserver",
      "distro": "ubuntu",
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "0"
            }
          ]
        }
      ],
      "release": "18.04",
      "versions": [
        "7.0.0-5",
        "7.1.2+ds-2",
        "7.1.2+ds-2build1",
        "7.1.2+ds-3"
      ],
      "ecosystem": "deb",
      "provider_url": "https://osv.dev/vulnerability/UBUNTU-CVE-2026-59173",
      "fixed_version": "",
      "provider_source": "pypi",
      "provider_record_id": "UBUNTU-CVE-2026-59173",
      "provider_updated_at": "2026-07-29T10:18:19.244665612Z"
    },
    {
      "name": "trafficserver",
      "distro": "ubuntu",
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "0"
            }
          ]
        }
      ],
      "release": "pro",
      "versions": [
        "8.1.1+ds-1.1",
        "9.1.1+ds-2build1",
        "9.1.1+ds-2ubuntu0.1~esm1",
        "9.1.1+ds-2ubuntu0.1",
        "9.1.1+ds-2ubuntu0.1+esm1"
      ],
      "ecosystem": "deb",
      "provider_url": "https://osv.dev/vulnerability/UBUNTU-CVE-2026-59173",
      "fixed_version": "",
      "provider_source": "pypi",
      "provider_record_id": "UBUNTU-CVE-2026-59173",
      "provider_updated_at": "2026-07-29T10:18:19.244665612Z"
    },
    {
      "name": "trafficserver",
      "distro": "ubuntu",
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "0"
            }
          ]
        }
      ],
      "release": "24.04",
      "versions": [
        "9.2.1+ds-1build1",
        "9.2.2+ds-1",
        "9.2.3+ds-1",
        "9.2.3+ds-1+deb12u1",
        "9.2.3+ds-1+deb12u1build1",
        "9.2.3+ds-1+deb12u1build3",
        "9.2.3+ds-1+deb12u1build4",
        "9.2.3+ds-1+deb12u1ubuntu0.1"
      ],
      "ecosystem": "deb",
      "provider_url": "https://osv.dev/vulnerability/UBUNTU-CVE-2026-59173",
      "fixed_version": "",
      "provider_source": "pypi",
      "provider_record_id": "UBUNTU-CVE-2026-59173",
      "provider_updated_at": "2026-07-29T10:18:19.244665612Z"
    },
    {
      "name": "traffic_server",
      "ranges": [
        {
          "fixed": "10.1.3",
          "introduced": "10.0.0",
          "last_affected": "",
          "start_excluding": ""
        }
      ],
      "ecosystem": "cpe",
      "provider_url": "https://nvd.nist.gov/vuln/detail/CVE-2026-59173",
      "fixed_version": "10.1.3",
      "provider_source": "nvd",
      "provider_record_id": "NVD-CVE-2026-59173",
      "provider_updated_at": "2026-10-24T20:10:00.137"
    }
  ]
}

[Debian bug #1142387]

Publisher notes

[bookworm] trafficserver: Minor issue, DoS

OpenFactory catalog packages

Matching against OpenFactory catalog package versions is in progress.

[Debian 12 (Bookworm)]

  • [trafficserver]Unknown
    Details (4)
    • 9.2.5+ds-0+deb12u4 · amd64 · bookworm

      Affected

      nvd · trafficserver · debian · bookworm; nvd · trafficserver · debian · 12

    • 9.2.5+ds-0+deb12u4 · arm64 · bookworm

      Affected

      nvd · trafficserver · debian · bookworm; nvd · trafficserver · debian · 12

    • 9.2.5+ds-0+deb12u4 · amd64 · bookworm-security

      Affected

      nvd · trafficserver · debian · bookworm; nvd · trafficserver · debian · 12

    • 9.2.5+ds-0+deb12u4 · arm64 · bookworm-security

      Affected

      nvd · trafficserver · debian · bookworm; nvd · trafficserver · debian · 12

  • Source package: [trafficserver]

    Details (4)
    • 9.2.5+ds-0+deb12u4 · amd64 · bookworm

      Affected

      nvd · trafficserver · debian · bookworm; nvd · trafficserver · debian · 12

    • 9.2.5+ds-0+deb12u4 · arm64 · bookworm

      Affected

      nvd · trafficserver · debian · bookworm; nvd · trafficserver · debian · 12

    • 9.2.5+ds-0+deb12u4 · amd64 · bookworm-security

      Affected

      nvd · trafficserver · debian · bookworm; nvd · trafficserver · debian · 12

    • 9.2.5+ds-0+deb12u4 · arm64 · bookworm-security

      Affected

      nvd · trafficserver · debian · bookworm; nvd · trafficserver · debian · 12

  • Source package: [trafficserver]

    Details (4)
    • 9.2.5+ds-0+deb12u4 · amd64 · bookworm

      Affected

      nvd · trafficserver · debian · bookworm; nvd · trafficserver · debian · 12

    • 9.2.5+ds-0+deb12u4 · arm64 · bookworm

      Affected

      nvd · trafficserver · debian · bookworm; nvd · trafficserver · debian · 12

    • 9.2.5+ds-0+deb12u4 · amd64 · bookworm-security

      Affected

      nvd · trafficserver · debian · bookworm; nvd · trafficserver · debian · 12

    • 9.2.5+ds-0+deb12u4 · arm64 · bookworm-security

      Affected

      nvd · trafficserver · debian · bookworm; nvd · trafficserver · debian · 12

Observed:

References