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TI-2026-74883 Aliases CVE-2026-108334GHSA-fcw2-f6v9-6ffp

Expression injection in Kuadrant operator lets HTTPRoute matches skip checks

Priority LOW 32CWE-917Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
Low · Low · Low
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and Red Hat. Impact type from CWE-917.

Summary

Red Hat Connectivity Link 1.4 and 1.5 are affected by a flaw in the Kuadrant operator's internal WASM shim. The shim does not escape HTTPRoute match values in the CEL predicate that decides whether Gateway authentication and rate limiting run (CWE-917). A user who can create or modify an HTTPRoute on a shared Gateway can supply a crafted path, header, or query match value that skips those checks. The request is still forwarded to the route's backend.

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

Description from the CNA

A flaw was found in the internal WebAssembly (WASM) shim used by the Kuadrant operator. When generating the CEL predicate that determines whether Gateway-level authentication and rate limiting should run, the shim does not correctly escape values from HTTPRoute match fields. A user who can create or modify an HTTPRoute attached to a shared Gateway can provide a crafted path, header, or query match value that causes the predicate to skip those checks. The request is still forwarded to the route’s backend.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00343 28th percentileScored 2026-11-07
Fix Fixed Red Hat: 2 advisories

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
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
Red HatRed Hat Connectivity Link 1.4—1791975888Patch availableCNA
Red HatRed Hat Connectivity Link 1.5—1792512519Patch availableCNA
Red HatRed Hat Connectivity Link 1——Not affectedCNA
Red HatRed Hat Connectivity Link 1——Not affectedCNA
Red HatRed Hat OpenShift AI (RHOAI)——Not affectedCNA
Red HatRed Hat OpenShift AI (RHOAI)——Not affectedCNA
  • Red Hat Connectivity Link 1.4 VendorRed Hat Affected — Fixed in 1791975888 Patch available CNA
  • Red Hat Connectivity Link 1.5 VendorRed Hat Affected — Fixed in 1792512519 Patch available CNA
  • Red Hat Connectivity Link 1 VendorRed Hat Affected — Fixed in — Not affected CNA
  • Red Hat Connectivity Link 1 VendorRed Hat Affected — Fixed in — Not affected CNA
  • Red Hat OpenShift AI (RHOAI) VendorRed Hat Affected — Fixed in — Not affected CNA
  • Red Hat OpenShift AI (RHOAI) VendorRed Hat Affected — Fixed in — Not affected CNA

CPE names CNA · 4

CPEVersionsRoleVendor
cpe:/a:redhat:connectivity_link:1.4::el91.4—Red Hat
cpe:/a:redhat:connectivity_link:1.5::el91.5—Red Hat
cpe:/a:redhat:connectivity_link:11—Red Hat
cpe:/a:redhat:openshift_ai——Red Hat
  • cpe:/a:redhat:connectivity_link:1.4::el9 Versions 1.4 — ·Red Hat
  • cpe:/a:redhat:connectivity_link:1.5::el9 Versions 1.5 — ·Red Hat
  • cpe:/a:redhat:connectivity_link:1 Versions 1 — ·Red Hat
  • cpe:/a:redhat:openshift_ai Versions — — ·Red Hat

Remediation

Red Hat Connectivity Link 1.4 is fixed in version 1791975888 by RHSA-2026:83531. Red Hat Connectivity Link 1.5 is fixed in version 1792512519 by RHSA-2026:88203. Red Hat lists Red Hat Connectivity Link 1 and Red Hat OpenShift AI (RHOAI) as not affected.

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

Red Hat 2 advisories

  • RHSA-2026:88203 Released 2026-10-22 · Red Hat rating Important
    Red Hat Connectivity Link component - rhcl-operator
    • Red Hat Connectivity Link 1.5 registry.redhat.io/rhcl-1/rhcl-rhel9-operator
  • RHSA-2026:83531 Released 2026-10-15 · Red Hat rating Important
    Red Hat Connectivity Link component - rhcl-operator security update
    • Red Hat Connectivity Link 1.4 registry.redhat.io/rhcl-1/rhcl-rhel9-operator

Vendor assessments

Red Hat

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

ProductStatusPlan or fix
Red Hat Connectivity Link 1.4Fixed RHSA-2026:83531
Red Hat Connectivity Link 1.5Fixed RHSA-2026:88203
Not affected: 4 products
  • Red Hat Connectivity Link 1
  • Red Hat Connectivity Link 1.4
  • Red Hat Connectivity Link 1.5
  • Red Hat OpenShift AI (RHOAI)

Timeline

  1. 2026-10-16 Threatist record created from CVE-2026-108334
  2. 2026-10-16 Affected versions changed · CNA
  3. 2026-10-16 Affected versions changed · Red Hat
  4. 2026-10-16 CVSS score added · Red Hat
  5. 2026-10-18 Fix available: rhcl-1/rhcl-rhel9-operator@1791975888 · CNA
  6. 2026-10-18 3 new references · CNA
  7. 2026-10-18 Alias added: GHSA-fcw2-f6v9-6ffp
  8. 2026-10-18 Fix available: RHSA-2026:83531 · Red Hat
  9. 2026-10-18 Fix available: Red Hat Connectivity Link 1.4 · Red Hat
  10. 2026-10-23 Fix available: rhcl-1/rhcl-rhel9-operator@1792512519 · CNA
  11. 2026-10-23 1 new reference · CNA
  12. 2026-10-23 Fix available: RHSA-2026:88203 · Red Hat
  13. 2026-10-23 Fix available: Red Hat Connectivity Link 1.5 · Red Hat

References

Advisory 2

Other 4

  • TI-2019-15875 Protection mechanism failure in Jenkins Pipeline: Groovy Plugin KEVCVSS 3.1CRITICAL 9.9
  • TI-2019-15874 Protection mechanism failure in Jenkins Script Security Plugin KEVCVSS 3.1CRITICAL 9.9
  • TI-2019-08259 Underflow in PHP-FPM can lead to RCE KEVCVSS 3.1CRITICAL 9.8
  • TI-2019-05363 Code injection in Elastic Kibana KEVCVSS 3.1CRITICAL 10.0
  • TI-2019-03949 Out-of-bounds write in ESXi and Horizon DaaS KEVCVSS 3.1CRITICAL 9.8
  • TI-2018-16080 A code execution vulnerability exists in the Stapler web framework used by Jenkins 2.153… KEVCVSS 3.1CRITICAL 9.8
See all 7413 →

Sources

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