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VulnerabilityPublished

CVE-2026-27949: makeplane plane · Information Exposure

Affects makeplane planeSource CVE Database V5

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Not known to be exploited · CVSS 2.0 Low : upgrade to 1.3.0 when convenient.

Data as of 29 Oct 2026, 19:04 UTC

CVSS 3.1 base score
2.0Low
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.1% chance of exploitation in 30 days – higher than 6% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 1.3.0
CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:L/I:N/A:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 7 Apr 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 plane and makeplane/plane to 1.3.0.

Affected software

ProductAffectedFixed in
makeplaneplaneAffected
  • <1.3.0
Fixed in
  • 1.3.0
GitHubmakeplane/planepkg:github/makeplane/planeOther threatsAffected
  • <1.3.0
Fixed in
  • 1.3.0

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

AI-suggested

Upgrade Plane to version 1.3.0 or later, where this vulnerability has been fixed. Since the vendor has released a fixed version, applying this official update is the recommended remediation. No additional mitigation steps are indicated.

Description

CVE-2026-27949 is a low-severity vulnerability in the open-source project management tool Plane prior to version 1.3.0. The issue involves exposure of a user's email address as a query parameter in the URL during error handling in the authentication flow, specifically when an invalid magic code is submitted. This practice of transmitting personally identifiable information (PII) via GET request query strings is considered insecure design. The vulnerability is fixed in Plane version 1.3.0.

References

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