CVE-2026-56249

תיאור (מקור, אנגלית)

Capgo before 12.128.2 contains an authorization bypass vulnerability in the channel creation endpoint that allows authenticated users to overwrite existing channels by reusing their names. Attackers with app.create_channel permission can exploit a logic mismatch between existence validation and upsert operations to reassign channel ownership and modify critical production channel configurations.

מדדים

CVSS 3.1

7.6 (HIGH) מקור הציון: CNA CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:L

CVSS 4.0

7.2 (HIGH) מקור הציון: CNA CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:H/VA:L/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

EPSS — סבירות ניצול

0% (אחוזון 000) נכון ל-15/8/2026

CWE

CWE-285

קישורים

• https://github.com/Cap-go/capgo/security/advisories/GHSA-vj24-j594-3wv3
• https://www.vulncheck.com/advisories/capgo-unauthorized-channel-overwrite-and-‮…
• https://github.com/Cap-go/capgo/security/advisories/GHSA-vj24-j594-3wv3