Detections
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SCA: security update for chainlit (GHSA-c39v-8hrw-h448)

high Tenable Cloud Security Plugin ID 448379

Description

There are packages installed that are affected by a vulnerability referenced in the following CVE:

 - Chainlit before 2.10.1 contains a session hijacking vulnerability that allows unauthenticated attackers to
 restore and inherit authenticated user sessions by presenting a valid sessionId during WebSocket session
 restoration without ownership verification. Attackers can exploit the restore_existing_session path to
 assume a victim's permissions and roles, enabling unauthorized invocation of tools and access to data
 restricted to the authenticated victim. (CVE-2026-56104)

Solution

Update the chainlit library and its related packages to version 2.10.1 or later.

See Also

https://github.com/advisories/GHSA-c39v-8hrw-h448

Plugin Details

Severity: High

ID: 448379

Version: Revision 1.1

Type: Local

Family: SCA Checks

Published: 9/25/2026

Updated: 9/25/2026

Risk Information

VPR

Risk Factor: Medium

Score: 4.8

Percentile: 57.7

Vendor

Vendor Severity: Critical

CVSS v2

Risk Factor: High

Base Score: 7.1

Temporal Score: 5.3

Vector: CVSS2#AV:N/AC:H/Au:N/C:C/I:C/A:N

CVSS Score Source: CVE-2026-56104

CVSS v3

Risk Factor: High

Base Score: 8.2

Temporal Score: 7.1

Vector: CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:N

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

CVSS v4

Risk Factor: High

Base Score: 8.8

Threat Score: 5.9

Threat Vector: CVSS:4.0/E:U

Vector: CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 6/22/2026

Vulnerability Publication Date: 6/22/2026

Reference Information

CVE: CVE-2026-56104

cwe: CWE-862