Dashboard / CVE-2026-22218

CVE-2026-22218

HIGH
MEDIUM Priority: 0.69 BB Relevance: 66/100
Published: 2026-01-19 Modified: 2026-11-08 First seen: 2026-11-08 Status: active

Attack Surface

Network Low Complexity No Interaction Conf. Impact

CVSS Vector Breakdown

AV: Network
AC: Low
PR: Low
UI: None
AT: None
VC: High
VI: None
VA: None

Description

Chainlit versions prior to 2.9.4 contain an arbitrary file read vulnerability in the /project/element update flow. An authenticated client can send a custom Element with a user-controlled path value, causing the server to copy the referenced file into the attacker’s session. The resulting element identifier (chainlitKey) can then be used to retrieve the file contents via /project/file/<chainlitKey>, allowing disclosure of any file readable by the Chainlit service.

Weakness Classification (1)

Affected Software (1)

VendorProductVersion
Chainlit Chainlit 0 < 2.9.4

References & Advisories (3)

Bug Bounty Relevance

66 / 100
✓ Network accessible
✓ Low complexity
✓ No user interaction

CVSS Score

7.1 / 10.0 v4.0
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

EPSS — Exploitation Probability

9.72%
Raw Score 0.097240
Percentile 95.6%
Date 2026-11-13

EPSS Trend

2026-11-13
0.09724
2026-11-12
0.09724
2026-11-10
0.09724
2026-11-09
0.09724
2026-11-08
0.09724

Intelligence Sources

mitre ref →

External Links