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RHEL 10 : rust-sequoia-sq (RHSA-2026:85848)

high Nessus Plugin ID 367819

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Synopsis

The remote Red Hat host is missing one or more security updates for rust-sequoia-sq.

Description

The remote Redhat Enterprise Linux 10 host has a package installed that is affected by multiple vulnerabilities as referenced in the RHSA-2026:85848 advisory.

 Command-line frontends for Sequoia.

 Security Fix(es):

 * hickory-resolver: hickory-resolver: DNSSEC validation bypass allows forged DNS records (CVE-2026-93657)

 * rustls-webpki: rustls-webpki: Denial of Service via crafted Certificate Revocation List (CVE-2026-93599)

 For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Solution

Update the RHEL rust-sequoia-sq package based on the guidance in RHSA-2026:85848.

See Also

https://access.redhat.com/errata/RHSA-2026:85848

https://access.redhat.com/security/updates/classification/#important

https://bugzilla.redhat.com/show_bug.cgi?id=2538208

https://bugzilla.redhat.com/show_bug.cgi?id=2538431

http://www.nessus.org/u?f80709fa

Plugin Details

Severity: High

ID: 367819

File Name: redhat-RHSA-2026-85848.nasl

Version: 1.1

Type: Local

Agent: unix

Published: 10/20/2026

Updated: 10/20/2026

Supported Sensors: Frictionless Assessment AWS, Frictionless Assessment Azure, Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Continuous Assessment, Tenable Cloud Security, Tenable Self-Hosted Container Security, Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.66

Vendor

Vendor Severity: Important

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 5.8

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:C/A:N

CVSS Score Source: CVE-2026-93657

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

CVSS v4

Risk Factor: High

Base Score: 8.7

Threat Score: 6.6

Threat Vector: CVSS:4.0/E:U

Vector: 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

Vulnerability Information

CPE: cpe:/o:redhat:enterprise_linux:10.2, p-cpe:/a:redhat:enterprise_linux:rust-sequoia-sq, p-cpe:/a:redhat:enterprise_linux:sequoia-sq

Required KB Items: Host/local_checks_enabled, Host/RedHat/release, Host/RedHat/rpm-list, Host/cpu

Exploit Ease: No known exploits are available

Patch Publication Date: 10/20/2026

Vulnerability Publication Date: 9/18/2026

Reference Information

CVE: CVE-2026-93599, CVE-2026-93657

CWE: 125, 354

RHSA: 2026:85848