CVE catalog

CVE-2026-18660

In Eclipse Jetty, across various versions of…

In Eclipse Jetty, across various versions of `jetty-server`, and `jetty-proxy`, the host whitelist/blacklist is case-sensitive, and would allow hosts through that only differ by case.

Severity: High · CVSS 8.8CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Published: Oct 15, 2026, 9:38:02 AM UTC
Updated: Oct 15, 2026, 10:17:12 AM UTC
Source: [NVD] · [CVE record]
EPSS: 0.32% · Oct 27, 2026

Projects and upstream resources

[jetty12][Source-reported homepage]

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 / release	Package	Version	Status	Source
Debiantrixie-security	jetty9	`9.4.57-1.1~deb13u1`	Affected	[CVE-2026-18660]
Debiantrixie	jetty9	Not reported	AffectedDistribution reports no fix	[CVE-2026-18660]
Debiantrixie	jetty9	`9.4.57-1.1~deb13u1`	Affected	[CVE-2026-18660]
Debiansid	jetty9	Not reported	AffectedDistribution reports no fix	[CVE-2026-18660]
Debiansid	jetty9	`9.4.58-2`	Affected	[CVE-2026-18660]
Debianforky	jetty9	Not reported	AffectedDistribution reports no fix	[CVE-2026-18660]
Debianforky	jetty9	`9.4.58-2`	Affected	[CVE-2026-18660]
Debianbookworm-security	jetty9	`9.4.57-1.1~deb12u1`	Affected	[CVE-2026-18660]
Debianbookworm	jetty9	Not reported	AffectedDistribution reports no fix	[CVE-2026-18660]
Debianbookworm	jetty9	`9.4.57-1.1~deb12u1`	Affected	[CVE-2026-18660]

Provider details and historical evidence

Distribution / release	Package	Version	Status	Source
Debianbookworm	jetty9	Not reported	AffectedDistribution reports no fix	[CVE-2026-18660]
Debianbookworm	jetty9	`9.4.57-1.1~deb12u1`	Affected	[CVE-2026-18660]
Debianbookworm-security	jetty9	`9.4.57-1.1~deb12u1`	Affected	[CVE-2026-18660]
Debianforky	jetty9	Not reported	AffectedDistribution reports no fix	[CVE-2026-18660]
Debianforky	jetty9	`9.4.58-2`	Affected	[CVE-2026-18660]
Debiansid	jetty9	Not reported	AffectedDistribution reports no fix	[CVE-2026-18660]
Debiansid	jetty9	`9.4.58-2`	Affected	[CVE-2026-18660]
Debiantrixie	jetty9	Not reported	AffectedDistribution reports no fix	[CVE-2026-18660]
Debiantrixie	jetty9	`9.4.57-1.1~deb13u1`	Affected	[CVE-2026-18660]
Debiantrixie-security	jetty9	`9.4.57-1.1~deb13u1`	Affected	[CVE-2026-18660]

Original provider fields

{
  "package_releases": [
    {
      "name": "jetty9",
      "status": "vulnerable",
      "release": "sid",
      "version": "9.4.58-2"
    },
    {
      "name": "jetty9",
      "status": "vulnerable",
      "release": "forky",
      "version": "9.4.58-2"
    },
    {
      "name": "jetty9",
      "status": "vulnerable",
      "release": "trixie",
      "version": "9.4.57-1.1~deb13u1"
    },
    {
      "name": "jetty9",
      "status": "vulnerable",
      "release": "trixie-security",
      "version": "9.4.57-1.1~deb13u1"
    },
    {
      "name": "jetty9",
      "status": "vulnerable",
      "release": "bookworm",
      "version": "9.4.57-1.1~deb12u1"
    },
    {
      "name": "jetty9",
      "status": "vulnerable",
      "release": "bookworm-security",
      "version": "9.4.57-1.1~deb12u1"
    }
  ],
  "fixed_versions": [
    {
      "bug": 1151846,
      "name": "jetty9",
      "type": "source",
      "origin": null,
      "release": "sid",
      "urgency": "not yet assigned",
      "fixed_version": ""
    },
    {
      "bug": 1151846,
      "name": "jetty9",
      "type": "source",
      "origin": null,
      "release": "forky",
      "urgency": "not yet assigned",
      "fixed_version": ""
    },
    {
      "bug": 1151846,
      "name": "jetty9",
      "type": "source",
      "origin": null,
      "release": "trixie",
      "urgency": "not yet assigned",
      "fixed_version": ""
    },
    {
      "bug": 1151846,
      "name": "jetty9",
      "type": "source",
      "origin": null,
      "release": "bookworm",
      "urgency": "not yet assigned",
      "fixed_version": ""
    }
  ],
  "distribution_packages": []
}

[Debian bug #1151846]

OpenFactory catalog packages

Matching against OpenFactory catalog package versions is in progress.

[Debian 12 (Bookworm)]

[jetty9]Unknown
Details (4)
- 9.4.57-1.1~deb12u1 · all · bookworm
  Affected
  nvd · jetty9 · debian · bookworm
- 9.4.57-1.1~deb12u1 · all · bookworm
  Affected
  nvd · jetty9 · debian · bookworm
- 9.4.57-1.1~deb12u1 · all · bookworm-security
  Affected
  nvd · jetty9 · debian · bookworm
- 9.4.57-1.1~deb12u1 · all · bookworm-security
  Affected
  nvd · jetty9 · debian · bookworm
[libjetty9-extra-java]Unknown
Source package: [jetty9]
Details (4)
- 9.4.57-1.1~deb12u1 · all · bookworm
  Affected
  nvd · jetty9 · debian · bookworm
- 9.4.57-1.1~deb12u1 · all · bookworm
  Affected
  nvd · jetty9 · debian · bookworm
- 9.4.57-1.1~deb12u1 · all · bookworm-security
  Affected
  nvd · jetty9 · debian · bookworm
- 9.4.57-1.1~deb12u1 · all · bookworm-security
  Affected
  nvd · jetty9 · debian · bookworm
[libjetty9-java]Unknown
Source package: [jetty9]
Details (4)
- 9.4.57-1.1~deb12u1 · all · bookworm
  Affected
  nvd · jetty9 · debian · bookworm
- 9.4.57-1.1~deb12u1 · all · bookworm
  Affected
  nvd · jetty9 · debian · bookworm
- 9.4.57-1.1~deb12u1 · all · bookworm-security
  Affected
  nvd · jetty9 · debian · bookworm
- 9.4.57-1.1~deb12u1 · all · bookworm-security
  Affected
  nvd · jetty9 · debian · bookworm

Observed: Oct 27, 2026, 4:41:03 AM UTC

References

[CERT-Bund public advisories] · [Debian Security Tracker] · [FIRST EPSS] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX]