OPENSUSE-SU-2026:21846-1
Vulnerability from csaf_opensuse - Published: 2026-09-14 14:01 - Updated: 2026-09-15 16:13Summary
Security update for keybase-client
Severity
Important
Notes
Title of the patch: Security update for keybase-client
Description of the patch: This update for keybase-client fixes the following issues:
Changes in keybase-client:
- CVE-2026-56855,CVE-2026-56854,CVE-2026-78662: authentication bypass and deadlocks in the crypto/ssh library
* Add update-go-crypto.patch to update affected dependency (bsc#1278586).
- Update to go 1.26 as required to update go crypto library
Patchnames: openSUSE-Leap-16.0-packagehub-585
Terms of use: CSAF 2.0 data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0).
8.1 (High)
Affected products
Recommended
16 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: openSUSE Leap 16.0:kbfs-6.6.3-bp160.3.1.aarch64 | — |
Vendor Fix
|
|
| Unresolved product id: openSUSE Leap 16.0:kbfs-6.6.3-bp160.3.1.ppc64le | — |
Vendor Fix
|
|
| Unresolved product id: openSUSE Leap 16.0:kbfs-6.6.3-bp160.3.1.s390x | — |
Vendor Fix
|
|
| Unresolved product id: openSUSE Leap 16.0:kbfs-6.6.3-bp160.3.1.x86_64 | — |
Vendor Fix
|
|
| Unresolved product id: openSUSE Leap 16.0:kbfs-git-6.6.3-bp160.3.1.aarch64 | — |
Vendor Fix
|
|
| Unresolved product id: openSUSE Leap 16.0:kbfs-git-6.6.3-bp160.3.1.ppc64le | — |
Vendor Fix
|
|
| Unresolved product id: openSUSE Leap 16.0:kbfs-git-6.6.3-bp160.3.1.s390x | — |
Vendor Fix
|
|
| Unresolved product id: openSUSE Leap 16.0:kbfs-git-6.6.3-bp160.3.1.x86_64 | — |
Vendor Fix
|
|
| Unresolved product id: openSUSE Leap 16.0:kbfs-tool-6.6.3-bp160.3.1.aarch64 | — |
Vendor Fix
|
|
| Unresolved product id: openSUSE Leap 16.0:kbfs-tool-6.6.3-bp160.3.1.ppc64le | — |
Vendor Fix
|
|
| Unresolved product id: openSUSE Leap 16.0:kbfs-tool-6.6.3-bp160.3.1.s390x | — |
Vendor Fix
|
|
| Unresolved product id: openSUSE Leap 16.0:kbfs-tool-6.6.3-bp160.3.1.x86_64 | — |
Vendor Fix
|
|
| Unresolved product id: openSUSE Leap 16.0:keybase-client-6.6.3-bp160.3.1.aarch64 | — |
Vendor Fix
|
|
| Unresolved product id: openSUSE Leap 16.0:keybase-client-6.6.3-bp160.3.1.ppc64le | — |
Vendor Fix
|
|
| Unresolved product id: openSUSE Leap 16.0:keybase-client-6.6.3-bp160.3.1.s390x | — |
Vendor Fix
|
|
| Unresolved product id: openSUSE Leap 16.0:keybase-client-6.6.3-bp160.3.1.x86_64 | — |
Vendor Fix
|
Threats
Impact
important
7.5 (High)
Affected products
Recommended
16 products, the same list as for
CVE-2026-56854
Threats
Impact
important
7.5 (High)
Affected products
Recommended
16 products, the same list as for
CVE-2026-56854
Threats
Impact
important
References
12 references
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"text": "The source-address critical option in the Permissions returned by an authentication callback was only enforced for the PublicKeyCallback and VerifiedPublicKeyCallback paths, extending the fix for CVE-2026-46595. Permissions returned by the PasswordCallback, KeyboardInteractiveCallback, NoClientAuthCallback, and GSSAPIWithMICConfig.AllowLogin callbacks were not validated against the client\u0027s remote address, so a source-address restriction set by those callbacks was silently ignored. The check is now applied to the Permissions returned by any authentication callback.",
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Loading…
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
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.
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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.
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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Related by attack behaviour
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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