Bypasses org-level repo access control, enabling unauthorized team-repo linking across widely used code-hosting platforms; high-impact for software supply and IP protection.
CVE-2026-58433
Auth bypass lets teams be linked to repos despite org deny setting.
Is CVE-2026-58433 being exploited?
Not confirmed. CVE-2026-58433 does not appear in CISA's Known Exploited Vulnerabilities catalog, which records only exploitation that has been observed and reported publicly. That is evidence of absence of a report, not evidence the flaw is unattacked. EPSS currently estimates a 0.28% probability of exploitation in the next 30 days.
How severe is CVE-2026-58433?
CVE-2026-58433 is rated Critical with a CVSS score of 9.1. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.
Is there a patch for CVE-2026-58433?
Yes. A fix has been recorded for CVE-2026-58433. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-58433 affect?
CVE-2026-58433 affects Platforms implementing 'RepoAdminChangeTeamAccess' org setting (code-hosting services). Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-58433?
Restrict/admin audit team-linking, monitor repository access, apply vendor patch when released.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Attackers can link teams to repositories despite RepoAdminChangeTeamAccess, granting unauthorized repo access, data exposure, and potential code tampering.
Immediate action required
- affected<= 1.26.4
As published in the CVE Program record. A version outside these ranges is not a statement that it is unaffected — vendors sometimes understate a range, and distribution-backported builds carry upstream numbers that do not reflect what was patched into them.