SCA: security update for starlette (GHSA-86qp-5c8j-p5mr)

medium Tenable Cloud Security Plugin ID 442645

Description

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

- Starlette is a lightweight ASGI framework/toolkit. Prior to version 1.0.1, the HTTP `Host` request header
was not validated before being used to reconstruct `request.url`. Because the routing algorithm relies on
the raw HTTP path while `request.url` is rebuilt from the `Host` header, a malformed header could make
`request.url.path` differ from the path that was actually requested. Middleware and endpoints that apply
security restrictions based on `request.url` (rather than the raw `scope` path) could therefore be
bypassed. Users should upgrade to a version greater than or equal to version 1.0.1, which validates the
`Host` header against the grammar of RFC 9112 §3.2 / RFC 3986 §3.2.2 when constructing `request.url` and
falls back to `scope["server"]` for malformed values. (CVE-2026-48710)

Solution

Update the starlette library and its related packages to version 1.0.1 or later.

See Also

https://github.com/advisories/GHSA-86qp-5c8j-p5mr

Plugin Details

Severity: Medium

ID: 442645

Version: Revision 1.5

Type: Local

Family: SCA Checks

Published: 6/4/2026

Updated: 7/10/2026

Supported Sensors: Tenable Cloud Security, Tenable Self-Hosted Container Security

Risk Information

VPR

Risk Factor: Medium

Score: 5.1

Percentile: 96.36

Vendor

Vendor Severity: Medium

CVSS v2

Risk Factor: Medium

Base Score: 6.4

Temporal Score: 5

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

CVSS Score Source: CVE-2026-48710

CVSS v3

Risk Factor: Medium

Base Score: 6.5

Temporal Score: 5.9

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

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

Vulnerability Information

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 6/4/2026

Vulnerability Publication Date: 5/26/2026

Reference Information

CVE: CVE-2026-48710