CVE-2026-110611

REBUILD through 4.5.0 Authorization Bypass via aibot2 Chat Endpoints chatid

6.0 Medium

REBUILD through 4.5.0 contains an authorization bypass vulnerability in AiBot2Controller /aibot2 endpoints that act on a caller-supplied chatid without verifying ownership. Authenticated low-privilege users can supply another user's chatid to chat-init, chat-delete, chat-feedback, or chat-stream-stop to read, delete, exfiltrate, or interrupt AI assistant conversations.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: High
Privileges needed: Low
User interaction: None

What an attacker can affect

Confidentiality: High
Integrity: Low
Availability: None

Exploit likelihood

0.38%Unchanged since Oct 15, 2026

What each source reports

CVE List Score used 6.0

REBUILD through 4.5.0 Authorization Bypass via aibot2 Chat Endpoints chatid

Record: CVE-2026-110611
CVSS 4.0: 6.0 MediumCVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N
CVSS 3.1: 5.9 MediumCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:L/A:N
Weakness: CWE-639
Updated: 2026-11-02

EUVDEUVD-2026-101239 6.0

Record: EUVD-2026-101239
CVSS 4.0: 6.0 MediumCVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N
Updated: 2026-11-02

GitHub AdvisoriesGHSA-c434-7979-wrg6 6.0

REBUILD through 4.5.0 contains an authorization bypass vulnerability in AiBot2Controller /aibot2...

Record: GHSA-c434-7979-wrg6
CVSS 4.0: 6.0 MediumCVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:H/VI:L/VA:N/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
CVSS 3.1: 5.9 MediumCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:L/A:N
Weakness: CWE-639
Updated: 2026-11-02

NVD 6.0

Record: CVE-2026-110611
CVSS 4.0: 6.0 MediumCVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:H/VI:L/VA:N/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
CVSS 3.1: 5.9 MediumCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:L/A:N
Weakness: CWE-639
Updated: 2026-11-02

OSV 6.0

REBUILD through 4.5.0 Authorization Bypass via aibot2 Chat Endpoints chatid

Record: CVE-2026-110611
CVSS 4.0: 6.0 MediumCVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N
Weakness: CWE-639
Updated: 2026-11-02

Affected products

getrebuild rebuild

History

History
Recorded	Changed	Sources
Nov 2, 2026	first indexed	CVE List, EUVD, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2026-110611 is a medium vulnerability (CVSS 6.0) in Getrebuild Rebuild, published October 14, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.38%, the 32nd percentile. No source names a fixed version.