Insufficient Session Expiration Affecting rust-hickory-net package, versions <0.26.3-1


Severity

Recommended
0.0
low
0
10

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Threat Intelligence

EPSS
0.22% (13th percentile)

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  • Snyk IDSNYK-DEBIAN14-RUSTHICKORYNET-22382311
  • published9 Nov 2026
  • disclosed8 Nov 2026

Introduced: 8 Nov 2026

NewCVE-2026-123597  (opens in a new tab)
CWE-613  (opens in a new tab)

How to fix?

Upgrade Debian:14 rust-hickory-net to version 0.26.3-1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream rust-hickory-net package and not the rust-hickory-net package as distributed by Debian. See How to fix? for Debian:14 relevant fixed versions and status.

Hickory DNS hickory-proto 0.25.0-alpha.1 through 0.26.0-alpha.1 and hickory-net before 0.26.2 contain a logic bug in DnssecDnsHandle's DS-fetch path that caches transient DS lookup errors as Bogus DNSSEC validation verdicts. An attacker who induces a SERVFAIL, REFUSED, or timeout response to a child-zone DS sub-query causes the validator to return SERVFAIL for all names under that zone until the cache entry's TTL expires.

CVSS Base Scores

version 3.1