← לוח פגיעויות

CVE-2026-42006

בינונית 4.3

תיאור (מקור, אנגלית)

An attacker can cause uncontrolled memory usage with excessive bracing over IMAP. The fix in CVE-2026-27857 was incomplete, only blocking one way of doing this, so there was still another way left open. In particular, the fix was for closing braces, but you could still use open braces to bypass the limit. Using excessive bracing, attacker can cause memory usage up to configured memory limit. Install fixed version, or configure vsz_limit for imap process to low value. No publicly available exploits are known.

מדדים

CVSS 3.1
4.3 (MEDIUM) מקור הציון: CNA CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
EPSS — סבירות ניצול
1% (אחוזון 100) נכון ל-29/9/2026
CWE
CWE-400, CWE-770

מוצרים מושפעים

dovecot: dovecot; open-xchange: dovecot

קישורים