Vulnerability · Published Aug 17, 2026 · Assigned by VulnCheck
CVE-2026-74881openssl_encrypt before 1.4.0 CORS Misconfiguration via Wildcard Origins
Medium 6.5
In plain English
A medium-severity security flaw in openssl_encrypt from jahlives. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 30% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)6.5Medium
Exploit odds (30 days)0.4%top 69.7% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
openssl_encrypt versions before 1.4.0 configure CORS with allow_origins set to wildcard and allow_credentials enabled to true. Attackers can create malicious websites that make authenticated cross-origin requests to the API on behalf of any user who visits them.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| PyPI | openssl-encrypt | 1.4.0 | GHSA-c65f-x25w-62jv |
| PyPI | openssl-encrypt | 1.4.0 | PYSEC-2026-3977 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| jahlives | openssl_encrypt | 0 – before 1.4.0 |
Weakness: CWE-942 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
References
- GitHub Security Advisory (GHSA-c65f-x25w-62jv) vendor-advisory
- VulnCheck Advisory: openssl_encrypt before 1.4.0 CORS Misconfiguration via Wildcard Origins third-party-advisory