# CVE-2026-77131

## Summary

- **CVE ID:** CVE-2026-77131
- **Severity:** MEDIUM
- **CVSS Score:** 5.3 (CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N)
- **CWE:** CWE-319
- **Published:** Aug 25, 2026
- **Last Modified:** Aug 25, 2026

## Description

When OpenSSL is unavailable on the server, the extension transmits TYPO3 system information in cleartext instead of encrypting it. Exploitation requires the attacker to already be in control of the SYSSY project's API key.

## Affected Products

- TYPO3 — Extension "SYSSY - TYPO3 Monitoring & Security Checks" (0)

## References

- [CNA](https://typo3.org/security/advisory/typo3-ext-sa-2026-015)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.15%
- **EPSS Percentile:** 4.6

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-10._