Authentication Bypass in CWE-287 (CVE-2026-59500)
Summary
Authentication bypass in CWE-287 (CVE-2026-59500). Confidential information can be exposed externally.
Original description
The description as published by the source.
CWE-287: Improper Authentication
Source: NIST National Vulnerability Database NVD GitHub Advisory
Auto-generated summary
Assembled by SecPulse from the source data (CVSS, CWE, affected versions) using templates — no AI involved. Check the original description and references below for exact details.
A weakness called CVE-2026-59500 was discovered in CWE-287.
In plain terms, it is an authentication weakness that allows impersonation.
Severity is Critical (CVSS 10/10). If exploited, attackers can fully take over the affected system.
What you should do: update the affected software to the latest version. If unsure, ask your IT team or search the vendor's site for "CWE-287 CVE-2026-59500".
CVE-2026-59500 (CWE-287). Severity: Critical / CVSSv3 10. Category: CWE-287.
Response plan:
- Check the vendor advisory for affected versions and the patched release.
- If a vulnerable version is running in production, schedule maintenance (urgency from KEV/CVSS).
- If no patch yet, mitigate via WAF rule, disabling the affected feature, etc.
- Monitor logs / SIEM for known IOC and PoC signatures of this CVE.
PoCs and fix commits: see the 'References' section, MITRE, and NVD.
A weakness (CVE-2026-59500) in CWE-287. In plain words, it is an authentication weakness that allows impersonation.
Target versions of CWE-287 (see vendor advisory). If running in production, identify exposure immediately.
Severity: Critical (CVSS 10/10). If exploited, attackers can fully take over the affected system.
Update to the patched release as listed in the vendor advisory. (Typical mitigation pattern for CWE-287)
If a patch is not yet available, consider disabling the affected feature, applying WAF rules, blocking via network ACLs, or isolating the vulnerable version.
Check version information, scan dependencies via SBOM, and monitor SIEM for IOC and PoC signatures related to this CVE.
References
- web cna@cyber.gov.il
- web nvd.nist.gov
- web github.com