Bug 2530605

Summary: CVE-2026-56855 jfrog-cli: golang.org/x/crypto/ssh: Denial of Service via crafted messages [fedora-all]
Product: [Fedora] Fedora Reporter: jkelly <jkelly>
Component: jfrog-cliAssignee: Dominik 'Rathann' Mierzejewski <dominik>
Status: CLOSED ERRATA QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: rawhideCC: dominik, go-sig, negativo17
Target Milestone: ---Keywords: Security, SecurityTracking
Target Release: ---   
Hardware: Unspecified   
OS: Unspecified   
Whiteboard: {"flaws": ["6149aca5-d0d4-472f-b5bb-730faf189259"]}
Fixed In Version: jfrog-cli-2.126.0-1.el10_3 jfrog-cli-2.126.0-1.el10_2 jfrog-cli-2.126.0-1.el10_4 jfrog-cli-2.126.0-1.el9 jfrog-cli-2.126.0-1.fc44 jfrog-cli-2.127.0-1.fc45 Doc Type: ---
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2026-10-16 00:29:44 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On:    
Bug Blocks: 2528050    

Description jkelly 2026-09-09 09:14:15 UTC
Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.

Previously, after a channel has been established, a malicious peer could send crafted messages that would deadlock the entire connection. Now, we handle all RFC 4254 channel messages; global requests are handled explicitly. Then, treat all other messages as a protocol error and tear the connection down instead of buffering and blocking.

Comment 1 Fedora Update System 2026-10-07 12:43:02 UTC
FEDORA-2026-c7d327b980 (jfrog-cli-2.126.0-1.fc45) has been submitted as an update to Fedora 45.
https://bodhi.fedoraproject.org/updates/FEDORA-2026-c7d327b980

Comment 2 Fedora Update System 2026-10-07 12:43:03 UTC
FEDORA-2026-4d9c47d35a (jfrog-cli-2.126.0-1.fc44) has been submitted as an update to Fedora 44.
https://bodhi.fedoraproject.org/updates/FEDORA-2026-4d9c47d35a

Comment 3 Fedora Update System 2026-10-07 12:43:04 UTC
FEDORA-EPEL-2026-6126086652 (jfrog-cli-2.126.0-1.el10_4) has been submitted as an update to Fedora EPEL 10.4.
https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2026-6126086652

Comment 4 Fedora Update System 2026-10-07 12:43:05 UTC
FEDORA-EPEL-2026-bfe0e6cebc (jfrog-cli-2.126.0-1.el10_3) has been submitted as an update to Fedora EPEL 10.3.
https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2026-bfe0e6cebc

Comment 5 Fedora Update System 2026-10-07 12:43:06 UTC
FEDORA-EPEL-2026-7f96cebc19 (jfrog-cli-2.126.0-1.el9) has been submitted as an update to Fedora EPEL 9.
https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2026-7f96cebc19

Comment 6 Fedora Update System 2026-10-08 01:24:31 UTC
FEDORA-EPEL-2026-57bdc9acc3 has been pushed to the Fedora EPEL 10.2 testing repository.

You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2026-57bdc9acc3

See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates.

Comment 7 Fedora Update System 2026-10-08 01:31:25 UTC
FEDORA-EPEL-2026-bfe0e6cebc has been pushed to the Fedora EPEL 10.3 testing repository.

You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2026-bfe0e6cebc

See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates.

Comment 8 Fedora Update System 2026-10-08 02:08:21 UTC
FEDORA-2026-c7d327b980 has been pushed to the Fedora 45 testing repository.
Soon you'll be able to install the update with the following command:
`sudo dnf upgrade --enablerepo=updates-testing --refresh --advisory=FEDORA-2026-c7d327b980`
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2026-c7d327b980

See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates.

Comment 9 Fedora Update System 2026-10-08 02:23:38 UTC
FEDORA-EPEL-2026-6126086652 has been pushed to the Fedora EPEL 10.4 testing repository.

You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2026-6126086652

See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates.

Comment 10 Fedora Update System 2026-10-08 02:31:47 UTC
FEDORA-2026-4d9c47d35a has been pushed to the Fedora 44 testing repository.
Soon you'll be able to install the update with the following command:
`sudo dnf upgrade --enablerepo=updates-testing --refresh --advisory=FEDORA-2026-4d9c47d35a`
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2026-4d9c47d35a

See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates.

Comment 11 Fedora Update System 2026-10-08 02:33:56 UTC
FEDORA-EPEL-2026-7f96cebc19 has been pushed to the Fedora EPEL 9 testing repository.

You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2026-7f96cebc19

See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates.

Comment 12 Fedora Update System 2026-10-16 00:29:44 UTC
FEDORA-EPEL-2026-bfe0e6cebc (jfrog-cli-2.126.0-1.el10_3) has been pushed to the Fedora EPEL 10.3 stable repository.
If problem still persists, please make note of it in this bug report.

Comment 13 Fedora Update System 2026-10-16 15:57:47 UTC
FEDORA-EPEL-2026-57bdc9acc3 (jfrog-cli-2.126.0-1.el10_2) has been pushed to the Fedora EPEL 10.2 stable repository.
If problem still persists, please make note of it in this bug report.

Comment 14 Fedora Update System 2026-10-16 15:57:49 UTC
FEDORA-EPEL-2026-6126086652 (jfrog-cli-2.126.0-1.el10_4) has been pushed to the Fedora EPEL 10.4 stable repository.
If problem still persists, please make note of it in this bug report.

Comment 15 Fedora Update System 2026-10-16 15:59:32 UTC
FEDORA-EPEL-2026-7f96cebc19 (jfrog-cli-2.126.0-1.el9) has been pushed to the Fedora EPEL 9 stable repository.
If problem still persists, please make note of it in this bug report.

Comment 16 Fedora Update System 2026-10-16 16:32:51 UTC
FEDORA-2026-4d9c47d35a (jfrog-cli-2.126.0-1.fc44) has been pushed to the Fedora 44 stable repository.
If problem still persists, please make note of it in this bug report.

Comment 17 Fedora Update System 2026-10-31 18:44:45 UTC
FEDORA-2026-22065c06f7 (jfrog-cli-2.127.0-1.fc45) has been pushed to the Fedora 45 stable repository.
If problem still persists, please make note of it in this bug report.