Bug 2556068 (CVE-2026-111943)
| Summary: | CVE-2026-111943 crypto/x509: golang: crypto/x509: Man-in-the-middle attacks via untrusted intermediate certificates | ||
|---|---|---|---|
| Product: | [Other] Security Response | Reporter: | OSIDB Bzimport <bzimport> |
| Component: | vulnerability | Assignee: | Product Security <prodsec-ir-bot> |
| Status: | NEW --- | QA Contact: | |
| Severity: | high | Docs Contact: | |
| Priority: | high | ||
| Version: | unspecified | CC: | akhatavk, amctagga, ansmith, anthomas, aoconnor, aos-team-art-private, asdas, bbrownin, blitton, bniver, cdrage, chfoley, crizzo, dhanak, dkeler, dpaolell, drosa, dschmidt, dsimansk, eglynn, ehelms, flucifre, ggainey, gmeno, groman, ikhan, jbritton, jburrell, jdelft, jjoyce, jlanda, jpasqual, jpretori, jschluet, jturenov, jupierce, juwatts, kingland, kshier, lchilton, lgarciaa, lhh, mbarnett, mbenjamin, mbiarnes, mburns, mdellweg, mgarciac, mhackett, mhulan, mnovotny, mrunge, nmoumoul, osousa, pcreech, pjindal, ppalepu, ppostler, prdhamdh, rbobbitt, rchan, rhel-process-autobot, rushinde, sausingh, sfeifer, sghai, sidsharm, simaishi, smallamp, sostapov, stcannon, suppawar, swoodman, tasano, thason, tmalecek, vereddy, vimartin, vkarehfa, vlaad, watson-tool-maintainers, yguenane |
| Target Milestone: | --- | Keywords: | Security |
| Target Release: | --- | ||
| Hardware: | All | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | --- | |
| Doc Text: |
A flaw was found in Go's crypto/x509 package. The certificate verification process fails to block trust in intermediate certificates associated with a compromised Certificate Authority (CA). A remote attacker presenting a certificate signed by these intermediate authorities can impersonate legitimate servers during secure connections. This flaw can enable an attacker to conduct a man-in-the-middle (MitM) attack to intercept or alter confidential communications.
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Story Points: | --- |
| Clone Of: | Environment: | ||
| Last Closed: | 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: | 2556081, 2558900, 2558901 | ||
| Bug Blocks: | |||
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Description
OSIDB Bzimport
2026-10-20 09:43:11 UTC
This issue has been addressed in the following products: Red Hat Enterprise Linux 10 Via RHSA-2026:86093 https://access.redhat.com/errata/RHSA-2026:86093 This issue has been addressed in the following products: Red Hat Enterprise Linux 8 Via RHSA-2026:86203 https://access.redhat.com/errata/RHSA-2026:86203 This issue has been addressed in the following products: Red Hat Enterprise Linux 9 Via RHSA-2026:86196 https://access.redhat.com/errata/RHSA-2026:86196 This issue has been addressed in the following products: Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions Via RHSA-2026:86973 https://access.redhat.com/errata/RHSA-2026:86973 This issue has been addressed in the following products: Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions Via RHSA-2026:86972 https://access.redhat.com/errata/RHSA-2026:86972 This issue has been addressed in the following products: Red Hat Enterprise Linux 10.0 Extended Update Support Via RHSA-2026:87040 https://access.redhat.com/errata/RHSA-2026:87040 This issue has been addressed in the following products: Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions Via RHSA-2026:87041 https://access.redhat.com/errata/RHSA-2026:87041 This issue has been addressed in the following products: Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions Via RHSA-2026:87042 https://access.redhat.com/errata/RHSA-2026:87042 This issue has been addressed in the following products: Red Hat Enterprise Linux 9.6 Extended Update Support Via RHSA-2026:87043 https://access.redhat.com/errata/RHSA-2026:87043 This issue has been addressed in the following products: Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On Via RHSA-2026:87246 https://access.redhat.com/errata/RHSA-2026:87246 This issue has been addressed in the following products: Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions Red Hat Enterprise Linux 8.8 Telecommunications Update Service Via RHSA-2026:87245 https://access.redhat.com/errata/RHSA-2026:87245 This issue has been addressed in the following products: Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions Via RHSA-2026:87732 https://access.redhat.com/errata/RHSA-2026:87732 This issue has been addressed in the following products: Red Hat Enterprise Linux 9.6 Extended Update Support Via RHSA-2026:87911 https://access.redhat.com/errata/RHSA-2026:87911 This issue has been addressed in the following products: Red Hat Enterprise Linux 8 Via RHSA-2026:88188 https://access.redhat.com/errata/RHSA-2026:88188 This issue has been addressed in the following products: Red Hat Enterprise Linux 8 Via RHSA-2026:88189 https://access.redhat.com/errata/RHSA-2026:88189 This issue has been addressed in the following products: Red Hat Enterprise Linux 10 Via RHSA-2026:88262 https://access.redhat.com/errata/RHSA-2026:88262 This issue has been addressed in the following products: Red Hat Enterprise Linux 10 Via RHSA-2026:88280 https://access.redhat.com/errata/RHSA-2026:88280 This issue has been addressed in the following products: Red Hat Enterprise Linux 10.0 Extended Update Support Via RHSA-2026:88317 https://access.redhat.com/errata/RHSA-2026:88317 This issue has been addressed in the following products: Red Hat Enterprise Linux 10 Via RHSA-2026:88316 https://access.redhat.com/errata/RHSA-2026:88316 This issue has been addressed in the following products: Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions Via RHSA-2026:88332 https://access.redhat.com/errata/RHSA-2026:88332 This issue has been addressed in the following products: Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On Via RHSA-2026:88339 https://access.redhat.com/errata/RHSA-2026:88339 This issue has been addressed in the following products: Red Hat Enterprise Linux 10 Via RHSA-2026:88336 https://access.redhat.com/errata/RHSA-2026:88336 This issue has been addressed in the following products: Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions Red Hat Enterprise Linux 8.8 Telecommunications Update Service Via RHSA-2026:88340 https://access.redhat.com/errata/RHSA-2026:88340 This issue has been addressed in the following products: Red Hat Enterprise Linux 9 Via RHSA-2026:88354 https://access.redhat.com/errata/RHSA-2026:88354 This issue has been addressed in the following products: Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On Via RHSA-2026:88394 https://access.redhat.com/errata/RHSA-2026:88394 This issue has been addressed in the following products: Red Hat Enterprise Linux 10.0 Extended Update Support Via RHSA-2026:88397 https://access.redhat.com/errata/RHSA-2026:88397 This issue has been addressed in the following products: Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions Red Hat Enterprise Linux 8.8 Telecommunications Update Service Via RHSA-2026:88395 https://access.redhat.com/errata/RHSA-2026:88395 This issue has been addressed in the following products: Red Hat Enterprise Linux 9.6 Extended Update Support Via RHSA-2026:88396 https://access.redhat.com/errata/RHSA-2026:88396 |