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CVE-2026-41246

Contour is a Kubernetes ingress controller using Envoy proxy. From v1.19.0 to before v1.33.4, v1.32.5, and v1.31.6, Contour's Cookie Rewriting feature is vulnerable to Lua code injection. An attacker with RBAC permissions to create or modify HTTPProxy resources can craft a malicious value in spec.routes[].cookieRewritePolicies[].pathRewrite.value or spec.routes[].services[].cookieRewritePolicies[].pathRewrite.value that results in arbitrary code execution in the Envoy proxy. The cookie rewriting
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:7b1c7fd3a033554e20b6f36f0059c2a36eb3b9970f7082234605fea03110e708
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
2

Preserved source conflicts

No provider value was silently selected as the winner.

affected · 3 assertions

{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/a:redhat:ext_dns_optr:1"],"defaultStatus":"unaffected","packageName":"edo/external-dns-rhel9","product":"ExternalDNS Operator","vendor":"Red Hat"}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:7ef5335f8c96b324f0a51dba63212c9679b2c378f394e199f3ba62d8162642fe · sha256:9a7375f4248375b3… · /containers/adp/1/affected/1

{"product":"contour","vendor":"projectcontour","versions":[{"status":"affected","version":">= 1.33.0, < 1.33.4"},{"status":"affected","version":">= 1.32.0, < 1.32.5"},{"status":"affected","version":">= 1.19.0, < 1.31.6"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:7ef5335f8c96b324f0a51dba63212c9679b2c378f394e199f3ba62d8162642fe · sha256:9a7375f4248375b3… · /containers/cna/affected/0

{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/a:redhat:ext_dns_optr:1"],"defaultStatus":"unaffected","packageName":"edo/external-dns-rhel8","product":"ExternalDNS Operator","vendor":"Red Hat"}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:7ef5335f8c96b324f0a51dba63212c9679b2c378f394e199f3ba62d8162642fe · sha256:9a7375f4248375b3… · /containers/adp/1/affected/0
cwe · 2 assertions

{"cweId":"CWE-94","description":"Improper Control of Generation of Code ('Code Injection')","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:7ef5335f8c96b324f0a51dba63212c9679b2c378f394e199f3ba62d8162642fe · sha256:9a7375f4248375b3… · /containers/adp/1/problemTypes/0/descriptions/0

{"cweId":"CWE-94","description":"CWE-94: Improper Control of Generation of Code ('Code Injection')","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:7ef5335f8c96b324f0a51dba63212c9679b2c378f394e199f3ba62d8162642fe · sha256:9a7375f4248375b3… · /containers/cna/problemTypes/0/descriptions/0

Affected products and versions

3 source assertions
{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/a:redhat:ext_dns_optr:1"],"defaultStatus":"unaffected","packageName":"edo/external-dns-rhel9","product":"ExternalDNS Operator","vendor":"Red Hat"}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:7ef5335f8c96b324f0a51dba63212c9679b2c378f394e199f3ba62d8162642fe · sha256:9a7375f4248375b3… · /containers/adp/1/affected/1
{"product":"contour","vendor":"projectcontour","versions":[{"status":"affected","version":">= 1.33.0, < 1.33.4"},{"status":"affected","version":">= 1.32.0, < 1.32.5"},{"status":"affected","version":">= 1.19.0, < 1.31.6"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:7ef5335f8c96b324f0a51dba63212c9679b2c378f394e199f3ba62d8162642fe · sha256:9a7375f4248375b3… · /containers/cna/affected/0
{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/a:redhat:ext_dns_optr:1"],"defaultStatus":"unaffected","packageName":"edo/external-dns-rhel8","product":"ExternalDNS Operator","vendor":"Red Hat"}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:7ef5335f8c96b324f0a51dba63212c9679b2c378f394e199f3ba62d8162642fe · sha256:9a7375f4248375b3… · /containers/adp/1/affected/0

Provider-owned CVSS observations

2 source assertions
{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":8.1,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"NONE","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:7ef5335f8c96b324f0a51dba63212c9679b2c378f394e199f3ba62d8162642fe · sha256:9a7375f4248375b3… · /containers/adp/1/metrics/1/cvssV3_1
{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":8.1,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"NONE","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:7ef5335f8c96b324f0a51dba63212c9679b2c378f394e199f3ba62d8162642fe · sha256:9a7375f4248375b3… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

2 source assertions
{"cweId":"CWE-94","description":"Improper Control of Generation of Code ('Code Injection')","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:7ef5335f8c96b324f0a51dba63212c9679b2c378f394e199f3ba62d8162642fe · sha256:9a7375f4248375b3… · /containers/adp/1/problemTypes/0/descriptions/0
{"cweId":"CWE-94","description":"CWE-94: Improper Control of Generation of Code ('Code Injection')","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:7ef5335f8c96b324f0a51dba63212c9679b2c378f394e199f3ba62d8162642fe · sha256:9a7375f4248375b3… · /containers/cna/problemTypes/0/descriptions/0

Source references

7 source assertions
{"tags":["vdb-entry","x_refsource_REDHAT"],"url":"https://access.redhat.com/security/cve/CVE-2026-41246"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:7ef5335f8c96b324f0a51dba63212c9679b2c378f394e199f3ba62d8162642fe · sha256:9a7375f4248375b3… · /containers/adp/1/references/0
{"name":"RHBZ#2461257","tags":["issue-tracking","x_refsource_REDHAT"],"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2461257"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:7ef5335f8c96b324f0a51dba63212c9679b2c378f394e199f3ba62d8162642fe · sha256:9a7375f4248375b3… · /containers/adp/1/references/1
{"name":"https://github.com/projectcontour/contour/releases/tag/v1.31.6","tags":["x_refsource_MISC"],"url":"https://github.com/projectcontour/contour/releases/tag/v1.31.6"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:7ef5335f8c96b324f0a51dba63212c9679b2c378f394e199f3ba62d8162642fe · sha256:9a7375f4248375b3… · /containers/cna/references/1
{"name":"https://github.com/projectcontour/contour/releases/tag/v1.32.5","tags":["x_refsource_MISC"],"url":"https://github.com/projectcontour/contour/releases/tag/v1.32.5"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:7ef5335f8c96b324f0a51dba63212c9679b2c378f394e199f3ba62d8162642fe · sha256:9a7375f4248375b3… · /containers/cna/references/2
{"name":"https://github.com/projectcontour/contour/releases/tag/v1.33.4","tags":["x_refsource_MISC"],"url":"https://github.com/projectcontour/contour/releases/tag/v1.33.4"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:7ef5335f8c96b324f0a51dba63212c9679b2c378f394e199f3ba62d8162642fe · sha256:9a7375f4248375b3… · /containers/cna/references/3
{"name":"https://github.com/projectcontour/contour/security/advisories/GHSA-x4mj-7f9g-29h4","tags":["x_refsource_CONFIRM"],"url":"https://github.com/projectcontour/contour/security/advisories/GHSA-x4mj-7f9g-29h4"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:7ef5335f8c96b324f0a51dba63212c9679b2c378f394e199f3ba62d8162642fe · sha256:9a7375f4248375b3… · /containers/cna/references/0
{"tags":["x_sadp-csaf-vex"],"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-41246.json"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:7ef5335f8c96b324f0a51dba63212c9679b2c378f394e199f3ba62d8162642fe · sha256:9a7375f4248375b3… · /containers/adp/1/references/2

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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