CVE-2026-93657CWE-347

CVE-2026-93657

High · published September 18, 2026

CVSS v3.1
7.5
EPSS
0%
Percentile
13.1
In the wild
Unconfirmed
What it is

hickory-resolver versions before 0.26.2 fail to propagate bogus DNSSEC proof states through the Resolver::lookup() and Resolver::lookup_ip() APIs, allowing invalid records to be returned as successful results. Attackers controlling the answering zone or positioned on the network path can have forged DNS records accepted as validated, bypassing DNSSEC authentication checks.

The record
Technical detail
CVSS v3.1
7.5 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
CVSS v4.0
8.7 · CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N
EPSS
0.00231 · 13.1th percentile
Weakness
CWE-347 · Improper Verification of Cryptographic Signature
Published
2026-09-18T19:17Z
References (6)
https://github.com/hickory-dns/hickory-dns · [email protected]https://github.com/hickory-dns/hickory-dns/commit/30720f4fb22e5556ecbf26d2c8274ea4a9fdd238 · [email protected]https://github.com/hickory-dns/hickory-dns/pull/3871 · [email protected]https://github.com/hickory-dns/hickory-dns/releases/tag/v0.26.2 · [email protected]https://github.com/hickory-dns/hickory-dns/security/advisories/GHSA-5j98-2g5x-46v6 · [email protected]https://www.vulncheck.com/advisories/hickory-resolver-before-0.26.2-dnssec-validation-bypass · [email protected]
EPSS history
Timeline
  • 20 SEP 03:25Z
    EPSS moved — → 0%
    epss
  • 18 SEP 14:23Z
    hickory-resolver before 0.26.2 DNSSEC Validation Bypass
    cvelistv5