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VulnerabilityPublished Updated

CVE-2026-42195: jgraph drawio · Open Redirect

Affects jgraph drawioSource CVE Database V5

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Not known to be exploited · CVSS 3.4 Low : upgrade to 29.7.9 when convenient.

Data as of 30 Oct 2026, 06:59 UTC

CVSS 3.1 base score
3.4Low
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.1% chance of exploitation in 30 days – higher than 8% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 29.7.9
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:N/A:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 8 May 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 29 Oct 2026.

What to do

Upgrade drawio and jgraph/drawio to 29.7.9.

Affected software

ProductAffectedFixed in
jgraphdrawioAffected
  • <29.7.9
Fixed in
  • 29.7.9
GitHubjgraph/drawiopkg:github/jgraph/drawioOther threatsAffected
  • <29.7.9
Fixed in
  • 29.7.9

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

Upgrade draw.io to version 29.7.9 or later, where this vulnerability is patched. Since this is a client-side application vulnerability, applying the official update fully mitigates the issue.

Description

draw.io is a configurable diagramming and whiteboarding application. Prior to version 29.7.9, the draw.io client accepts a ?gitlab= URL parameter that overrides the GitLab server URL used during OAuth sign-in. A crafted link causes the user's click on draw.io's "Authorize in GitLab" dialog to open a popup on the attacker-controlled host instead of gitlab.com. This can lead to credential fishing and session state token exfiltration. This issue has been patched in version 29.7.9.

References

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