Detections
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SCA: security update for apostrophe (GHSA-34pj-2622-jvxq)

low Tenable Cloud Security Plugin ID 445555

Description

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

 - ApostropheCMS is an open-source Node.js content management system. In versions up to and including 4.30.0,
 when `prettyUrls: true` is enabled on `@apostrophecms/file` (a documented SEO feature for serving uploaded
 files at clean URLs), the public pretty-URL handler builds the upstream URL using the raw `Host` HTTP
 request header. That URL is then `fetch`'ed and the response body + headers are streamed straight back to
 the requester. Because `Host` is fully attacker-controlled, an unauthenticated remote attacker can pivot
 the apostrophe process to issue outbound HTTP requests against any host it can reach on the private
 network. The path component is constrained to `/uploads/attachments/<cuid>-<slug>.<ext>` (built from a
 local-DB lookup), which keeps the impact narrow: cross-instance data exfiltration is neutralized by cuid
 uniqueness, but blind-SSRF residuals remain (network-topology mapping via response-code / timing
 differences and verbose proxy/WAF 404 body disclosure). As of time of publication, no known patched
 versions exist. (CVE-2026-53607)

Solution

Update the apostrophe library and its related packages to version 4.31.0 or later.

See Also

https://github.com/advisories/GHSA-34pj-2622-jvxq

Plugin Details

Severity: Low

ID: 445555

Version: Revision 1.1

Type: Local

Family: SCA Checks

Published: 8/1/2026

Updated: 8/1/2026

Risk Information

VPR

Risk Factor: Low

Score: 1.2

Percentile: 0.01

Vendor

Vendor Severity: Low

CVSS v2

Risk Factor: Low

Base Score: 2.6

Temporal Score: 1.9

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

CVSS Score Source: CVE-2026-53607

CVSS v3

Risk Factor: Low

Base Score: 3.7

Temporal Score: 3.2

Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/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: 7/31/2026

Vulnerability Publication Date: 6/12/2026

Reference Information

CVE: CVE-2026-53607

cwe: CWE-918