Vulnerability-Lookup

RHSA-2026:82247

Vulnerability from csaf_redhat - Published: 2026-10-13 13:19 - Updated: 2026-10-14 02:39

Summary

Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update

Severity

Low

Notes

Topic: An update for Red Hat Hardened Images RPMs is now available.

Details: This update includes the following RPMs: openssh: * openssh-10.5p1-1.2.hum1 (aarch64, s390x, x86_64) * openssh-askpass-10.5p1-1.2.hum1 (aarch64, s390x, x86_64) * openssh-clients-10.5p1-1.2.hum1 (aarch64, s390x, x86_64) * openssh-keycat-10.5p1-1.2.hum1 (aarch64, s390x, x86_64) * openssh-keysign-10.5p1-1.2.hum1 (aarch64, s390x, x86_64) * openssh-server-10.5p1-1.2.hum1 (aarch64, s390x, x86_64) * openssh-sk-dummy-10.5p1-1.2.hum1 (aarch64, s390x, x86_64) * openssh-10.5p1-1.2.hum1.src (src)

Terms of Use: This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.

CVE-2026-106586

A flaw was found in OpenSSH. In configurations where tunnel forwarding is enabled on the server, the restrict option in the authorized keys configuration fails to properly block tunnel forwarding requests. An authenticated user connecting with a restricted key can exploit this issue to bypass intended access limitations and establish unauthorized network tunnels through the server.

2.5 (Low)


                
                  CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:N

CWE-267 - Privilege Defined With Unsafe Actions

Affected products

Fixed 22 products

Product	Version	Remediation
Unresolved product id: Red Hat Hardened Images:openssh-0:10.5p1-1.2.hum1@aarch64	—	Vendor Fix fix
Unresolved product id: Red Hat Hardened Images:openssh-0:10.5p1-1.2.hum1@s390x	—	Vendor Fix fix
Unresolved product id: Red Hat Hardened Images:openssh-0:10.5p1-1.2.hum1@src	—	Vendor Fix fix
Unresolved product id: Red Hat Hardened Images:openssh-0:10.5p1-1.2.hum1@x86_64	—	Vendor Fix fix
Unresolved product id: Red Hat Hardened Images:openssh-askpass-0:10.5p1-1.2.hum1@aarch64	—	Vendor Fix fix
Unresolved product id: Red Hat Hardened Images:openssh-askpass-0:10.5p1-1.2.hum1@s390x	—	Vendor Fix fix
Unresolved product id: Red Hat Hardened Images:openssh-askpass-0:10.5p1-1.2.hum1@x86_64	—	Vendor Fix fix
Unresolved product id: Red Hat Hardened Images:openssh-clients-0:10.5p1-1.2.hum1@aarch64	—	Vendor Fix fix
Unresolved product id: Red Hat Hardened Images:openssh-clients-0:10.5p1-1.2.hum1@s390x	—	Vendor Fix fix
Unresolved product id: Red Hat Hardened Images:openssh-clients-0:10.5p1-1.2.hum1@x86_64	—	Vendor Fix fix
Unresolved product id: Red Hat Hardened Images:openssh-keycat-0:10.5p1-1.2.hum1@aarch64	—	Vendor Fix fix
Unresolved product id: Red Hat Hardened Images:openssh-keycat-0:10.5p1-1.2.hum1@s390x	—	Vendor Fix fix
Unresolved product id: Red Hat Hardened Images:openssh-keycat-0:10.5p1-1.2.hum1@x86_64	—	Vendor Fix fix
Unresolved product id: Red Hat Hardened Images:openssh-keysign-0:10.5p1-1.2.hum1@aarch64	—	Vendor Fix fix
Unresolved product id: Red Hat Hardened Images:openssh-keysign-0:10.5p1-1.2.hum1@s390x	—	Vendor Fix fix
Unresolved product id: Red Hat Hardened Images:openssh-keysign-0:10.5p1-1.2.hum1@x86_64	—	Vendor Fix fix
Unresolved product id: Red Hat Hardened Images:openssh-server-0:10.5p1-1.2.hum1@aarch64	—	Vendor Fix fix
Unresolved product id: Red Hat Hardened Images:openssh-server-0:10.5p1-1.2.hum1@s390x	—	Vendor Fix fix
Unresolved product id: Red Hat Hardened Images:openssh-server-0:10.5p1-1.2.hum1@x86_64	—	Vendor Fix fix
Unresolved product id: Red Hat Hardened Images:openssh-sk-dummy-0:10.5p1-1.2.hum1@aarch64	—	Vendor Fix fix
Unresolved product id: Red Hat Hardened Images:openssh-sk-dummy-0:10.5p1-1.2.hum1@s390x	—	Vendor Fix fix
Unresolved product id: Red Hat Hardened Images:openssh-sk-dummy-0:10.5p1-1.2.hum1@x86_64	—	Vendor Fix fix

Threats

Impact Low

References

16 references

URL	Category
https://access.redhat.com/errata/RHSA-2026:82247	self
https://images.redhat.com/	external
https://access.redhat.com/security/cve/CVE-2026-106586	external
https://access.redhat.com/security/updates/classi…	external
https://access.redhat.com/security/cve/CVE-2026-106583	external
https://access.redhat.com/security/cve/CVE-2026-106587	external
https://access.redhat.com/security/cve/CVE-2026-106552	external
https://access.redhat.com/security/cve/CVE-2026-106582	external
https://access.redhat.com/security/cve/CVE-2026-106584	external
https://access.redhat.com/security/cve/CVE-2026-106585	external
https://security.access.redhat.com/data/csaf/v2/a…	self
https://access.redhat.com/security/cve/CVE-2026-106586	self
https://bugzilla.redhat.com/show_bug.cgi?id=2547584	external
https://www.cve.org/CVERecord?id=CVE-2026-106586	external
https://nvd.nist.gov/vuln/detail/CVE-2026-106586	external
https://www.openssh.org/releasenotes.html#10.6	external

JSON

To clipboard

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          "category": "impact",
          "details": "Low"
        }
      ],
      "title": "openssh: OpenSSH: Security restriction bypass via unenforced restrict directive in tunnel forwarding"
    }
  ]
}

CVE-2026-106586 (GCVE-0-2026-106586)

Vulnerability from cvelistv5 – Published: 2026-10-06 20:57 – Updated: 2026-10-07 16:20

Summary

In sshd in OpenSSH before 10.6, the restrict keyword (in authorized_keys) was supposed to be applicable to tunnel forwarding but was not, a different vulnerability than CVE-2026-73283.

Severity

2.5 (Low)


                        
                          CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:N

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-10-07 16:19 UTC

CWE

CWE-670 - Always-Incorrect Control Flow Implementation

Assigner

mitre CNA under the mitre root

CNA scorecard E 28/100 over 2319 records in the last 180 days details

References

1 reference

URL	Tags
https://www.openssh.org/releasenotes.html#10.6

Impacted products

1 product

Vendor	Product	Version
OpenBSD	OpenSSH	Affected: 0 , < 10.6 (custom) cpe:2.3:a:openbsd:openssh::::::::

Show details on NVD website

JSON

To clipboard

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Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Vulnerability timeline

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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

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Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

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