Exploit discussion active in current signal (1 latest mentions)
Recommended action window: High priority (within 72h)
Priority
LOW
Exploitation
NONE
PoC
YES
Patch
AVAILABLE
Momentum
STABLE
| Date | Total | Labels |
|---|
| 2026-06-25 | 1 | Disclosure1 |
| 2026-09-21 | 1 | PoC1 |
| 2026-10-27 | 1 | General1 |
CVE-2026-55556 rsyslog... God there are so many . First rule of cyber security. Nothing is ever secure if it can communicate with another device.
Post summary
The text briefly references CVE-2026-55556 in rsyslog but offers no technical details, exploitation status, or remediation guidance, functioning primarily as a general commentary on cybersecurity insecurity.
CVE-2026-55556: rsyslog imhttp: Basic Auth heap overflow https://www.openwall.com/lists/oss-security/2026/06/23/4 requires - rsyslog built with the contributed imhttp module - imhttp installed and available - imhttp loaded and configured - HTTP Basic Authentication enabled - attacker access to that HTTP endpoint
Post summary
The post announces CVE‑2026‑55556, a heap overflow in rsyslog’s imhttp module when HTTP Basic Authentication is enabled, and specifies the conditions necessary for exploitation.
csirt_it: ‼️ #PoC #rsyslog: Disponibile Proof of Concept (PoC) per lo sfruttamento CVE-2026-55556 e CVE-2026-61548 Rischio: 🔴 Tipologia: 🔸 Remote Code Execution 🔸 Denial of Service 🔗 https://www.acn.gov.it/portale/w/rsyslog-poc-pubbliche-per-lo-sfruttamento-delle-cve-2026-55556-e-cve-2026-61548 ⚠️ Importante mantenere aggiornati i si… https://t.co/ai00qqXU8X
Post summary
Italian CSIRT (csirt_it) alerts that PoC exploit code is publicly available for two rsyslog vulnerabilities (CVE-2026-55556 and CVE-2026-61548) enabling RCE and DoS, and urges administrators to keep systems updated.