Penpot: IDOR in Share-Link Deletion Allows Any File Editor to Delete Share-Links They Did Not Create

published 2026-10-05 34 d ago modified 2026-10-06 34 d ago also EUVD-2026-92710

cvss: 5.4; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.2%; EPSS 0.2% chance of exploitation in 30 days, percentile 12%
public exploits: 0; none known

Penpot is an open-source design and prototyping platform. Prior to 2.18.0, the delete-share-link RPC retrieves a caller-selected share-link ID and verifies only that the caller can edit the parent file. It does not verify that the caller created the share link or has owner or administrator authority, allowing any file editor who knows a share-link UUID to delete links created by other users and revoke external reviewers' access. This issue is fixed in version 2.18.0.

Patch / fix

fixed in 1 links 3

kaleidos penpot 2.18.0

github.com/penpot/penpot@209aea8 commit
github.com/penpot/penpot#11290 pull request
github.com/penpot/penpot/releases/tag/2.18.0 release

CISA SSVC

Exploitation: none
Automatable: no
Technical impact: partial
Assessed: 34 d ago (2026-10-06)

Exploit prediction

0.22% chance of exploitation in the next 30 days, higher than 12% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.1	5.4	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L

Affected products

penpot penpot

Classification

Weakness

CWE-284 Improper Access Control
CWE-639 Authorization Bypass Through User-Controlled Key

References

Sources

CVE List CVE-2026-105692
NVD CVE-2026-105692

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.

Summary