Detections
Analytics
SCA: security update for undici (GHSA-m8rv-5g2x-5cg5)
medium Tenable Cloud Security Plugin ID 445605
Description
There are packages installed that are affected by a vulnerability referenced in the following CVE:- undici does not validate the type property of a duck-typed blob-like request body before using it as the
Content-Type header on the HTTP/1.1 dispatcher. In undici before 6.28.0, from 7.0.0 up to before 7.29.0,
and from 8.0.0 up to before 8.9.0, an application that passes a hand-rolled blob-like body (via request,
stream, pipeline, or dispatch) whose type is derived from untrusted input allows an attacker to inject
CRLF sequences and append arbitrary HTTP headers, potentially smuggling a second request past the
upstream. Native Blob objects are safe because their constructor strips CRLF from the type, and fetch is
unaffected because it validates headers, but ecosystem libraries that build duck-typed blob shapes from
user input can reach the vulnerable path. This is the same defect class as CVE-2022-35948 and
CVE-2026-1527, on a header sink that the earlier fixes did not cover. The issue is fixed in undici 6.28.0,
7.29.0, and 8.9.0. (CVE-2026-15157)
Solution
Update the undici library and its related packages to version 6.28.0 or later.See Also
Plugin Details
Severity: Medium
ID: 445605
Version: Revision 1.1
Type: Local
Family: SCA Checks
Published: 8/4/2026
Updated: 8/4/2026
Risk Information
VPR
Risk Factor: Low
Score: 2.1
Percentile: 7.89
Vendor
Vendor Severity: Medium
CVSS v2
Risk Factor: Medium
Base Score: 4
Temporal Score: 3
Vector: CVSS2#AV:N/AC:H/Au:N/C:P/I:P/A:N
CVSS Score Source: CVE-2026-15157
CVSS v3
Risk Factor: Medium
Base Score: 4.2
Temporal Score: 3.7
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N
Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C
Vulnerability Information
Exploit Ease: No known exploits are available
Patch Publication Date: 8/3/2026
Vulnerability Publication Date: 7/29/2026
Reference Information
CVE: CVE-2026-15157
cwe: CWE-93