Is CVE-2026-22218 in the CISA KEV catalog?

No. CVE-2026-22218 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2026-22218?

CVE-2026-22218 has a CVSS v3 base score of 6.5 (MEDIUM).

What is the EPSS score for CVE-2026-22218?

CVE-2026-22218 has an EPSS score of 8.84% (95th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2026-22218?

Upgrade chainlit to 2.9.4 or later.

CVE & CISA-KEV Catalog

CVE-2026-22218

MEDIUMEPSS 95th pctl

6.5

CVSS v3

NVD

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.

CWE-22Path Traversal

How to fix

Remediation Available

chainlitNVD

Affected:< 2.9.4Fixed in:2.9.4CVE-2026-22218derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredLow

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityNone

AvailabilityNone

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Exploit Intelligence

8.84%probability of exploitation in 30 days

95thpercentile

High risk: more likely to be exploited than 95% of all known CVEs.

References

Exploit1

zafran.io

Third-Party Advisory1

vulncheck.com

Release Notes1

github.com

Related Vulnerabilities

Other CWE-22 (Path Traversal) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2024-23897	Critical	9.8	100%	KEV + Ransom	Fix
CVE-2023-32315	High	8.6	100%	KEV	Fix
CVE-2022-29464	Critical	9.8	100%	KEV + Ransom	-
CVE-2021-26086	Medium	5.3	100%	KEV	Fix
CVE-2021-22005	Critical	9.8	100%	KEV + Ransom	Fix
CVE-2020-5902	Critical	9.8	100%	KEV + Ransom	Fix

Embed a live status badge for CVE-2026-22218

Markdown

[![CVE-2026-22218](https://tridentstack.com/cve/badge/CVE-2026-22218.svg)](https://tridentstack.com/cve/CVE-2026-22218)

HTML

<a href="https://tridentstack.com/cve/CVE-2026-22218"><img src="https://tridentstack.com/cve/badge/CVE-2026-22218.svg" alt="CVE-2026-22218"></a>

Find and fix vulnerabilities across your fleet

TridentStack Control continuously scans your Windows, macOS, and Linux fleet for known vulnerabilities, prioritizes them by severity and active exploitation, and patches them automatically.

Start free

This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-02-02.