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CVE-2026-110180

MEDIUM 4.8

Published 2026-10-20 · Last modified 2026-10-20

fast-uri is a dependency-free RFC 3986 URI parser and serializer for Node.js. In versions from 2.4.2 through 2.4.7, from 3.1.3 through 3.1.8, and from 4.0.1 through 4.2.2, for HTTP-family schemes the canonicalizeHost() function passes the parsed host to the WHATWG URL parser and adopts its hostname without checking that the parser consumed the entire input as a host, so the authority can be silently rewritten: data before an at-sign is dropped and tab, carriage-return, and line-feed characters are stripped, with no error reported. An application that enforces host-based policy such as denylists, loopback filtering, redirect validation, or outbound proxy routing on one representation can then see the canonical host diverge from what it checked, allowing traffic to be steered to an unintended destination. The issue is fixed in fast-uri 2.4.8, 3.1.9, and 4.2.3, and users should upgrade to one of these versions or later. As a workaround, reject an authority that contains more than one at-sign or any tab, carriage-return, or line-feed before calling fast-uri, or treat any non-empty parse error as fatal and compare hosts only from the same parse result.

NO EXPLOITATION SIGNALS

No known exploitation, public exploit, or elevated probability at this time. Track for changes.

Exploitation likelihood

0.3%chance of exploitation in 30 days · 17th percentile

○ In CISA KEV ○ Catalogued PoC

Impact if exploited

4.8CVSS 3.1 · MEDIUM

  • ConfidentialityLow
  • IntegrityLow
  • AvailabilityNone

What an attacker needs

  • ✓Access: Reachable over the network — no local access needed
  • ✓Privileges: No account or privileges required
  • ✓User interaction: No user interaction needed
  • ⚠Complexity: Needs a race window or specific setup

✓ lowers the bar for an attacker · ⚠ raises it

Proof of concept

No public PoC is currently catalogued.

Search for new PoCs

Search GitHub now — results may be empty or unverified.

Tracked sources are checked daily for recent CVEs, including PoCs published after the original disclosure. A later release appears after a tracked source lists it and a refresh succeeds.

Data snapshot:

Affected

Vendors Fast Uri

Products Fast Uri

Weakness (CWE)

  • CWE-20: : Improper Input Validation
  • CWE-436: : Interpretation Conflict

CVSS vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N

References and research data (JSON)

Packages and version ranges

Each advisory describes its own package and affected ranges. A boundary applies to that range; it is not a universal upgrade recommendation.

  • fast-uri npm

    pkg:npm/fast-uri

    SEMVER range
    • Introduced version (included): 2.4.2
    • Fixed boundary (excluded): 2.4.8
    Additional upstream package constraints
    {
  "database": {
    "source": "https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/10/GHSA-wjr9-j795-jxcr/GHSA-wjr9-j795-jxcr.json"
  }
}
    GitHub Advisory Database · GHSA-wjr9-j795-jxcr · Updated 2026-10-23T21:45:04.892054666Z
  • fast-uri npm

    pkg:npm/fast-uri

    SEMVER range
    • Introduced version (included): 3.1.3
    • Fixed boundary (excluded): 3.1.9
    Additional upstream package constraints
    {
  "database": {
    "source": "https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/10/GHSA-wjr9-j795-jxcr/GHSA-wjr9-j795-jxcr.json"
  }
}
    GitHub Advisory Database · GHSA-wjr9-j795-jxcr · Updated 2026-10-23T21:45:04.892054666Z
  • fast-uri npm

    pkg:npm/fast-uri

    SEMVER range
    • Introduced version (included): 4.0.1
    • Fixed boundary (excluded): 4.2.3
    Additional upstream package constraints
    {
  "database": {
    "source": "https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/10/GHSA-wjr9-j795-jxcr/GHSA-wjr9-j795-jxcr.json"
  }
}
    GitHub Advisory Database · GHSA-wjr9-j795-jxcr · Updated 2026-10-23T21:45:04.892054666Z

Vendor product assessments

Showing 32 of 149 vendor product statements; 117 omitted. Read the full vendor advisory.

  • costmanagement/costmanagement-ui-rhel10 as a component of Cost Management On Premise · known affected

    Vendor assessment for this product only.

    pkg:oci/costmanagement-ui-rhel10@sha256:39700faac93e613fdd8139aed7b6dbb79a4d542f3f3cca6be04c4edce72eaf5d?repository_url=registry.redhat.io/costmanagement/costmanagement-ui-rhel10

    • none available: Fix deferred
    Red Hat · CVE-2026-110180 · Updated 2026-10-20T08:39:03+00:00
  • network-observability/network-observability-console-plugin-rhel9 as a component of Network Observability Operator · known affected

    Vendor assessment for this product only.

    pkg:oci/network-observability-console-plugin-rhel9@sha256:fb8fba794fda8541fdaa0f2fcfa6467068abbaa0b4d6d497bc46837bf38a750a?repository_url=registry.redhat.io/network-observability/network-observability-console-plugin-rhel9

    • none available: Fix deferred
    Red Hat · CVE-2026-110180 · Updated 2026-10-20T08:39:03+00:00
  • openshift-pipelines/pipelines-hub-ui-rhel8 as a component of OpenShift Pipelines · known affected

    Vendor assessment for this product only.

    pkg:oci/pipelines-hub-ui-rhel8@sha256:f20c772aeadcf5abf5c44a8d42b1ce03ee285aba297ba44f324a012c485b9645?repository_url=registry.redhat.io/openshift-pipelines/pipelines-hub-ui-rhel8

    • none available: Fix deferred
    Red Hat · CVE-2026-110180 · Updated 2026-10-20T08:39:03+00:00
  • amq-broker-maven-repository.zip as a component of Red Hat AMQ Broker 7 · known affected

    Vendor assessment for this product only.

    pkg:generic/[email protected]

    • none available: Fix deferred
    Red Hat · CVE-2026-110180 · Updated 2026-10-20T08:39:03+00:00
  • automation-platform-ui.src as a component of Red Hat Ansible Automation Platform 2 · known affected

    Vendor assessment for this product only.

    pkg:rpm/redhat/[email protected]?arch=src

    • none available: Fix deferred
    Red Hat · CVE-2026-110180 · Updated 2026-10-20T08:39:03+00:00
  • rhdh/red-hat-developer-hub-backstage-plugin-orchestrator as a component of Red Hat Developer Hub · known affected

    Vendor assessment for this product only.

    pkg:oci/red-hat-developer-hub-backstage-plugin-orchestrator@sha256:3aa39a8c3b7bf33aeaae5b3f924d0a2f7625e64657ce9b5517a3a73620f142bb?repository_url=registry.redhat.io/rhdh/red-hat-developer-hub-backstage-plugin-orchestrator

    • none available: Fix deferred
    Red Hat · CVE-2026-110180 · Updated 2026-10-20T08:39:03+00:00
  • rhdh/rhdh-hub-rhel9 as a component of Red Hat Developer Hub · known affected

    Vendor assessment for this product only.

    pkg:oci/rhdh-hub-rhel9@sha256:ea53db6012b6fe1c80760624caddb0d3b674614b62cb3c359ed3fde270314eb2?repository_url=registry.redhat.io/rhdh/rhdh-hub-rhel9

    • none available: Fix deferred
    Red Hat · CVE-2026-110180 · Updated 2026-10-20T08:39:03+00:00
  • rhem/flightctl-ui-ocp-rhel9 as a component of Red Hat Edge Manager 1 · known affected

    Vendor assessment for this product only.

    pkg:oci/flightctl-ui-ocp-rhel9@sha256:f25989a62885c089c0f2317e9bafac8008dedd05b311a35aa63074a1f6c16377?repository_url=registry.redhat.io/rhem/flightctl-ui-ocp-rhel9

    • none available: Fix deferred
    Red Hat · CVE-2026-110180 · Updated 2026-10-20T08:39:03+00:00
  • aspnetcore-targeting-pack-8.0 as a component of Red Hat Enterprise Linux 10 · known affected

    Vendor assessment for this product only.

    pkg:rpm/redhat/aspnetcore-targeting-pack-8.0

    • none available: Fix deferred
    Red Hat · CVE-2026-110180 · Updated 2026-10-20T08:39:03+00:00
  • dotnet-runtime-8.0 as a component of Red Hat Enterprise Linux 10 · known affected

    Vendor assessment for this product only.

    pkg:rpm/redhat/dotnet-runtime-8.0

    • none available: Fix deferred
    Red Hat · CVE-2026-110180 · Updated 2026-10-20T08:39:03+00:00
  • dotnet-targeting-pack-8.0 as a component of Red Hat Enterprise Linux 10 · known affected

    Vendor assessment for this product only.

    pkg:rpm/redhat/dotnet-targeting-pack-8.0

    • none available: Fix deferred
    Red Hat · CVE-2026-110180 · Updated 2026-10-20T08:39:03+00:00
  • grafana-pcp.src as a component of Red Hat Enterprise Linux 10 · known affected

    Vendor assessment for this product only.

    pkg:rpm/redhat/grafana-pcp?arch=src

    • none available: Fix deferred
    Red Hat · CVE-2026-110180 · Updated 2026-10-20T08:39:03+00:00
  • sgx-libs as a component of Red Hat Enterprise Linux 10 · known affected

    Vendor assessment for this product only.

    pkg:rpm/redhat/sgx-libs

    • none available: Fix deferred
    Red Hat · CVE-2026-110180 · Updated 2026-10-20T08:39:03+00:00
  • tdx-qgs as a component of Red Hat Enterprise Linux 10 · known affected

    Vendor assessment for this product only.

    pkg:rpm/redhat/tdx-qgs

    • none available: Fix deferred
    Red Hat · CVE-2026-110180 · Updated 2026-10-20T08:39:03+00:00
  • dotnet-apphost-pack-8.0 as a component of Red Hat Enterprise Linux 8 · known affected

    Vendor assessment for this product only.

    pkg:rpm/redhat/dotnet-apphost-pack-8.0

    • none available: Fix deferred
    Red Hat · CVE-2026-110180 · Updated 2026-10-20T08:39:03+00:00
  • dotnet-sdk-8.0-source-built-artifacts as a component of Red Hat Enterprise Linux 8 · known affected

    Vendor assessment for this product only.

    pkg:rpm/redhat/dotnet-sdk-8.0-source-built-artifacts

    • none available: Fix deferred
    Red Hat · CVE-2026-110180 · Updated 2026-10-20T08:39:03+00:00
  • netstandard-targeting-pack-2.1 as a component of Red Hat Enterprise Linux 8 · known affected

    Vendor assessment for this product only.

    pkg:rpm/redhat/netstandard-targeting-pack-2.1

    • none available: Fix deferred
    Red Hat · CVE-2026-110180 · Updated 2026-10-20T08:39:03+00:00
  • dotnet-host as a component of Red Hat Enterprise Linux 9 · known affected

    Vendor assessment for this product only.

    pkg:rpm/redhat/dotnet-host

    • none available: Fix deferred
    Red Hat · CVE-2026-110180 · Updated 2026-10-20T08:39:03+00:00
  • dotnet-sdk-8.0-source-built-artifacts as a component of Red Hat Enterprise Linux 9 · known affected

    Vendor assessment for this product only.

    pkg:rpm/redhat/dotnet-sdk-8.0-source-built-artifacts

    • none available: Fix deferred
    Red Hat · CVE-2026-110180 · Updated 2026-10-20T08:39:03+00:00
  • linux-sgx.src as a component of Red Hat Enterprise Linux 9 · known affected

    Vendor assessment for this product only.

    pkg:rpm/redhat/linux-sgx?arch=src

    • none available: Fix deferred
    Red Hat · CVE-2026-110180 · Updated 2026-10-20T08:39:03+00:00
  • sgx-pccs as a component of Red Hat Enterprise Linux 9 · known affected

    Vendor assessment for this product only.

    pkg:rpm/redhat/sgx-pccs

    • none available: Fix deferred
    Red Hat · CVE-2026-110180 · Updated 2026-10-20T08:39:03+00:00
  • rhelai3/bootc-gaudi-rhel9 as a component of Red Hat Enterprise Linux AI (RHEL AI) 3 · known affected

    Vendor assessment for this product only.

    pkg:oci/bootc-gaudi-rhel9@sha256:e1057b59ca1be9501332abf97230855e85c7df858356be0da9dce230ea7e98e1?repository_url=registry.redhat.io/rhelai3/bootc-gaudi-rhel9

    • none available: Fix deferred
    Red Hat · CVE-2026-110180 · Updated 2026-10-20T08:39:03+00:00
  • grafana13.2.src as a component of Red Hat Hardened Images · known affected

    Vendor assessment for this product only.

    pkg:rpm/redhat/[email protected]?arch=src

    • none available: Affected
    Red Hat · CVE-2026-110180 · Updated 2026-10-20T08:39:03+00:00
  • rhoai/odh-mod-arch-agent-ops-rhel9 as a component of Red Hat OpenShift AI (RHOAI) · known affected

    Vendor assessment for this product only.

    pkg:oci/odh-mod-arch-agent-ops-rhel9@sha256:bf5e5b308f9f167fe21c2ac0f8f7dd65af47bbd7d0c3396b66fbe62620d853b4?repository_url=registry.redhat.io/rhoai/odh-mod-arch-agent-ops-rhel9

    • none available: Fix deferred
    Red Hat · CVE-2026-110180 · Updated 2026-10-20T08:39:03+00:00
  • rhoai/odh-mod-arch-maas-rhel9 as a component of Red Hat OpenShift AI (RHOAI) · known affected

    Vendor assessment for this product only.

    pkg:oci/odh-mod-arch-maas-rhel9@sha256:34954fc242ca5a0d736d90f8cba4d4383f41058a966717cfdc25d378cf92c064?repository_url=registry.redhat.io/rhoai/odh-mod-arch-maas-rhel9

    • none available: Fix deferred
    Red Hat · CVE-2026-110180 · Updated 2026-10-20T08:39:03+00:00
  • openshift4/ose-console-rhel9 as a component of Red Hat OpenShift Container Platform 4 · known affected

    Vendor assessment for this product only.

    pkg:oci/ose-console-rhel9@sha256:f116792bea2df6fdea9d26770e502ded47f616dad57c5283ed6307be11b70d79?repository_url=registry.redhat.io/openshift4/ose-console-rhel9

    • none available: Fix deferred
    Red Hat · CVE-2026-110180 · Updated 2026-10-20T08:39:03+00:00
  • odf4/odf-multicluster-console-rhel9 as a component of Red Hat Openshift Data Foundation 4 · known affected

    Vendor assessment for this product only.

    pkg:oci/odf-multicluster-console-rhel9@sha256:d4574c7ae8976ae6c20fcbd3637a2dcaa04ac1c4bc965ad3e013f71718dc6bfa?repository_url=registry.redhat.io/odf4/odf-multicluster-console-rhel9

    • no fix planned: Out of support scope
    Red Hat · CVE-2026-110180 · Updated 2026-10-20T08:39:03+00:00
  • quay/quay-rhel8 as a component of Red Hat Quay 3 · known affected

    Vendor assessment for this product only.

    pkg:oci/quay-rhel8@sha256:f33464ccc07e05781c2ec093df7fd9093b5ab0aae6435c11d632cc1332a560ee?repository_url=registry.redhat.io/quay/quay-rhel8

    • no fix planned: Out of support scope
    Red Hat · CVE-2026-110180 · Updated 2026-10-20T08:39:03+00:00
  • satellite/iop-host-inventory-frontend-rhel9 as a component of Red Hat Satellite 6 · known affected

    Vendor assessment for this product only.

    pkg:oci/iop-host-inventory-frontend-rhel9@sha256:7c39ecb6f63fa79890ec88707870eb2f665fa49de6e42eb5c41807044725933a?repository_url=registry.redhat.io/satellite/iop-host-inventory-frontend-rhel9

    • none available: Fix deferred
    Red Hat · CVE-2026-110180 · Updated 2026-10-20T08:39:03+00:00
  • ansible-automation-platform/bootc-automation-portal-rhel9 as a component of Self-service automation portal 2 · known affected

    Vendor assessment for this product only.

    pkg:oci/bootc-automation-portal-rhel9@sha256:8553c734145775879bdfe2befa9f2df1c22c6d7db2f2251401c3cc517a7e0394?repository_url=registry.redhat.io/ansible-automation-platform/bootc-automation-portal-rhel9

    • none available: Fix deferred
    Red Hat · CVE-2026-110180 · Updated 2026-10-20T08:39:03+00:00
  • dotnet8.0.src as a component of Red Hat Hardened Images · known not affected

    Vendor assessment for this product only.

    Reason: component not present

    pkg:rpm/redhat/dotnet8.0?arch=src

    Red Hat · CVE-2026-110180 · Updated 2026-10-20T08:39:03+00:00
  • prometheus3.13.src as a component of Red Hat Hardened Images · known not affected

    Vendor assessment for this product only.

    Reason: component not present

    pkg:rpm/redhat/[email protected]?arch=src

    Red Hat · CVE-2026-110180 · Updated 2026-10-20T08:39:03+00:00

All CVSS metrics

  • MEDIUM 4.8 v3.1 · CNA Primary
    CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N
  • MEDIUM 4.8 v3.1 · NVD Secondary
    CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N

References

Advisories

Technical & other

Sources: NVD · CVE.org · EPSS