CVE-2026-42590Disclosure(thecodingmachine / gotenberg)

LOWCVSS 8.2 · HIGH

Signal is active with 1 mentions in latest observed window

Immediate actions

Track advisory updates for patch or workaround availability

Recommended action window: Monitor and triage in normal cycle

NVD description

Gotenberg is a Docker-powered stateless API for PDF files. Prior to 8.30.0, The ExifTool metadata write blocklist in Gotenberg can be bypassed using ExifTool's group-prefix syntax, enabling arbitrary file rename, move, hardlink, and symlink creation on the server. ExifTool supports group-prefix syntax where File:FileName is processed identically to FileName -- the prefix is stripped by SetNewValue in Writer.pl before tag matching. The safeKeyPattern regex (^[a-zA-Z0-9\-_.:]+$) allows colons, so prefixed tag names pass validation. Any prefix works: File:FileName, System:Directory, a:HardLink, etc. Additionally, FilePermissions, FileUserID, and FileGroupID pseudo-tags are not blocked at all and can modify file attributes without any prefix. This vulnerability is fixed in 8.30.0.

thecodingmachine CVEs Back to dashboard

0.0/ 10 priority

Sources & remediation

Exploit / PoC references

Weakness type (CWE)

CWE-184

Priority

LOW

Exploitation

NONE

PoC

YES

Patch

NONE

Momentum

NONE

Are you affected?

If you run products in this scope, you should treat this CVE as relevant to your environment.

gotenberg

Threat summary

1 mentions across 1 observed day

What's happening

Technical details provided in 1 signal
Disclosure: 1 classified signal
1 total mentions across 1 day

Affected systems

Vendors

thecodingmachine

Products

gotenberg

Deep dive

Activity timeline1 mentions / 1d

Signal classification1 categories

Disclosure

1100.0%

Referenced assets1 URL

By indicator

https://sec.kaitan.id/cves/CVE-2026-42590

Full discourse1 post

Kaitan ID Security@KaitanSecurity148d
Disclosure
⚠️ HIGH — CVE-2026-42590 Gotenberg is a Docker-powered stateless API for PDF files. Prior to 8.30.0, The ExifTool metadata write blocklist in Go… CVSS 8.2 Full analysis → https://sec.kaitan.id/cves/CVE-2026-42590 #Docker #CyberSecurity #InfoSec
Post summary
A CVE‑2026‑42590 vulnerability affecting Gotenberg’s ExifTool metadata write blocklist has been identified with a CVSS score of 8.2; no PoC, exploit, or patch is mentioned.
0000049
90 followersView on X

CPE platform detail1 entries

Part:

Vendor:

Product:

Version:

Target SW:

Target HW:

1 of 1 entries

Part	Vendor	Product	Version	Target SW	Target HW
App	thecodingmachine	gotenberg	-	-	-

Explore more

Back to dashboard thecodingmachine CVEs gotenberg vulnerabilities