CVE-2026-94127

BIG-IP APM OAuth vulnerability

Description

When a BIG-IP APM access policy and an OAuth profile are configured on a virtual server, specific malicious traffic can lead to remote code execution (RCE). This vulnerability is only present when BIG-IP APM is configured as an OAuth Authorization Server. Deployments using APM strictly as an OAuth Client / Resource Server (without OAuth authorization server profiles configured) are not affected by this vulnerability. Impact: This vulnerability allows an unauthenticated attacker to perform remote code execution. The BIG-IP system in Appliance mode is also vulnerable. This is a data plane issue; there is no control plane exposure. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

Scores

Weaknesses (CWE)

• CWE-122

European references

• ENISA EUVD · EUVD-2026-84427
• GCVE · GCVE-0-2026-94127

CERT-FR advisories

• CERTFR-2026-AVI-1220 — Vulnérabilité dans F5 BIG-IP · cert.ssi.gouv.fr

Affected configurations (NVD CPE)

• cpe:2.3:a:f5:big-ip_access_policy_manager:*:*:*:*:*:*:*:* ≥ 17.0.0 ≤ 17.1.3
• cpe:2.3:a:f5:big-ip_access_policy_manager:*:*:*:*:*:*:*:* ≥ 17.5.0 ≤ 17.5.1
• cpe:2.3:a:f5:big-ip_access_policy_manager:21.1.0:*:*:*:*:*:*:*

Affected products

References

• https://my.f5.com/manage/s/article/K000162605
• https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-94127

Sources