CVE-2026-74872 json
openssl_encrypt before 1.4.0 Arbitrary Code Execution via Whirlpool
published 2026-03-31 7 mo ago modified 2026-10-08 31 d ago also GHSA-j48q-4c78-rhf9 , PYSEC-2026-3742 , EUVD-2026-60091
- cvss
- 9.8
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.7%
- EPSS 0.7% chance of exploitation in 30 days, percentile 52%
- public exploits
- 0
- none known
Summary
openssl_encrypt versions before 1.4.0 contain an arbitrary code execution vulnerability in the Whirlpool hash implementation that uses broad glob patterns to load .so modules without integrity verification. Attackers can place malicious .so files matching the whirlpool*py313*.so pattern in site-packages directories to achieve native code execution when the module is loaded.
Patch / fix
- pypi openssl-encrypt 1.4.0
- jahlives openssl_encrypt 1.4.0
CISA SSVC
- Exploitation
- none
- Automatable
- yes
- Technical impact
- total
- Assessed
- 2 mo ago
Exploit prediction
0.68% chance of exploitation in the next 30 days, higher than 52% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 4.0 | 9.3 | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N |
| CNA | 3.1 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| CNA | 4.0 | 9.3 | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| pypi | openssl-encrypt | <1.4.0 |
1.4.0 |
Affected products
- jahlives openssl_encrypt
Classification
References
-
github.com
/jahlives/openssl_encrypt/commit/963d0d1278b722ea134272f9df65fddcd3e6ab47
web
-
github.com
/jahlives/openssl_encrypt/security/advisories/GHSA-j48q-4c78-rhf9
vendor-advisory, web, mitigation, advisory
-
vulncheck.com
/advisories/openssl-encrypt-before-arbitrary-code-execution-via-whirlpool
third-party-advisory, advisory
-
github.com
/jahlives/openssl_encrypt
package
Sources
- CVE List CVE-2026-74872
- GitHub Advisory GHSA-j48q-4c78-rhf9
- NVD CVE-2026-74872
- OSV PYSEC-2026-3742
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