CVE-2026-73549
- Source
- https://cve.org/CVERecord?id=CVE-2026-73549
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-73549.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-73549
- Aliases
-
- GHSA-jp5f-qr64-c9vw
- Downstream
- Related
- Published
- 2026-09-21T19:42:48Z
- Modified
- 2026-09-24T03:45:56Z
- Severity
-
- 5.3 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
- Summary
- Envoy - Incomplete fix for CVE-2026-26310: copyInternetAddressAndPort crashes on scoped IPv6 addresses in ORIGINAL_DST clusters
- Details
-
Envoy is an open source edge and service proxy designed for cloud-native applications. Prior to 1.36.10, 1.37.6, 1.38.4, and 1.39.1, Envoy's Utility::copyInternetAddressAndPort and QUIC client-address paths reconstruct scoped IPv6 addresses through addressAsString and Ipv6Instance. The string includes a percent scope identifier that inet_pton cannot parse, causing an exception or abort. Kernel-provided scoped IPv6 destinations in ORIGINAL_DST transparent-proxy deployments, and affected QUIC connection paths, can therefore terminate the process. The relevant scope boundary is that the HTTP use_http_header override rejects scoped addresses earlier; the advisory's crash path requires a kernel-provided original destination or the affected QUIC path. This issue is fixed in versions 1.36.10, 1.37.6, 1.38.4, and 1.39.1.
- Database specific
{ "cna_assigner": "GitHub_M", "cwe_ids": [ "CWE-754" ], "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/73xxx/CVE-2026-73549.json" }- References
-
- https://github.com/envoyproxy/envoy/releases/tag/v1.36.10
- https://github.com/envoyproxy/envoy/releases/tag/v1.37.6
- https://github.com/envoyproxy/envoy/releases/tag/v1.38.4
- https://github.com/envoyproxy/envoy/releases/tag/v1.39.1
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/73xxx/CVE-2026-73549.json
- https://github.com/envoyproxy/envoy/security/advisories/GHSA-jp5f-qr64-c9vw
- https://nvd.nist.gov/vuln/detail/CVE-2026-73549
- https://github.com/envoyproxy/envoy/commit/109e5a5b08ad10d99074cefd55a747a16ee64da7
- https://github.com/envoyproxy/envoy/commit/59b1744a6cb62746db418ac06fc5e359fd25fdb7
- https://github.com/envoyproxy/envoy/commit/6e39f4c94deff7a60d382c2d95883e0ea49ff691
- https://github.com/envoyproxy/envoy/commit/ab2dca2d65b079768230a7c3d825afeefa330215
Affected packages
Git / github.com/envoyproxy/envoy
Affected ranges
- Type
- GIT
- Repo
- https://github.com/envoyproxy/envoy
- Events
-
Introduced0 Unknown introduced commit / All previous commits are affectedIntroducedIntroducedIntroducedFixedFixedFixedFixedFixedFixedFixedFixed
- Database specific
-
Show details
{ "extracted_events": [ { "introduced": "0" }, { "fixed": "1.36.10" }, { "introduced": "1.37.0" }, { "fixed": "1.37.6" }, { "introduced": "1.38.0" }, { "fixed": "1.38.4" }, { "introduced": "1.39.0" }, { "fixed": "1.39.1" } ], "source": [ "AFFECTED_FIELD", "REFERENCES" ] }