CVE-2026-19780Patch

LOWCVSS 8.8 · HIGH

Signal is active with 1 mentions in latest observed window

Immediate actions

Patch affected systems immediately

Recommended action window: Monitor and triage in normal cycle

NVD description

Koha Eval Code Injection Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Koha. Authentication is required to exploit this vulnerability. The specific flaw exists within the web service, which listens on TCP port 8081 by default. The issue results from the lack of proper validation of a user-supplied string before passing it to the eval function. An attacker can leverage this vulnerability to execute code in the context of the service account. Was ZDI-CAN-29165.

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0.5/ 10 priority

Sources & remediation

Other references

https://www.zerodayinitiative.com/advisories/ZDI-26-616/

Weakness type (CWE)

CWE-95

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

AVAILABLE

Momentum

NONE

Threat summary

Patch or workaround signal is available
1 mentions across 1 observed day

What's happening

Patch or workaround mentioned in 1 signal
Technical details provided in 1 signal
1 total mentions across 1 day

Deep dive

Activity timeline1 mentions / 1d

Signal classification1 categories

Patch

1100.0%

Full discourse1 post

DFIR Lab@DFIR_Lab47d
Patch
🚨 HIGH: CVE-2026-19780 (CVSS 8.8) - Koha library system vulnerable to eval code injection on TCP 8081. Authenticated attackers can execute arbitrary code. Patch immediately if running affected versions. #CVE #PatchNow #ThreatIntel https://t.co/UoxpOWBHBb
Post summary
The tweet alerts about a high‑severity eval code injection vulnerability (CVE‑2026‑19780) in the Koha library system (CVSS 8.8) that allows authenticated remote code execution on TCP 8081 and urges immediate patching.
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