CVE-2026-74882High· 7.5▾ Twilightopenssl_encrypt versions before 1.4.0 contain an insecure default configuration that trusts the entire RFC 1918 private address space in IntegrityProxyConfig trusted_proxies. Attackers on private networks can forge client certificate hea…
▾ Twilight zone — High severity, or a signal on a lesser flaw
impact 41.3 · likelihood 0 · exploitation 0
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Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake. The CVSS score shown above comes from the assigning CNA record, not NVD.
Exploit-prediction probability, daily snapshots since Sep 2.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via CVEORG
0.1%
0.1% → 0.2%
Last analysed / modified upstream
9.1 → 7.5
critical → high
openssl_encrypt versions before 1.4.0 contain an insecure default configuration that trusts the entire RFC 1918 private address space in IntegrityProxyConfig trusted_proxies. Attackers on private networks can forge client certificate headers to bypass mTLS authentication when ProxyAuth validation is relaxed or modified.
openssl_encrypt < 1.4.0Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Affected packages:
openssl-encrypt < 1.4.0Patched in:
openssl-encrypt 1.4.0Field changes observed since this record was first indexed.
Connected by shared product, vendor, weakness, or advisory.
CVE-2026-81702Critical· 9.8openssl_encrypt before 1.4.9 Key Substitution via Identity Load
CVE-2026-81706Medium· 6.8openssl_encrypt before 1.4.9 Key Substitution via Identity Shadowing
CVE-2026-74890Medium· 5.5openssl_encrypt before 1.4.0 HMAC Authentication Bypass via Environment Variable
CVE-2026-74875Critical· 9.8openssl_encrypt versions before 1.4.0 silently skip JSON schema validation when the jsonschema library is not installed, allowing malformed metadata to be accepted
CVE-2026-74870Low· 3.3openssl_encrypt before 1.4.8 Hardware Pepper Information Disclosure
CVE-2026-81680Medium· 4.0openssl_encrypt before 1.4.9 Authentication Bypass via Recovery Slot Removal