CVE-2026-27949: Plane is an an open-source project management tool

Q: How do I fix CVE-2026-27949?

plane: upgrade to 1.3.0. Exact commands for each OS are on this page.

Q: Is CVE-2026-27949 being exploited?

CVE-2026-27949 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2026-27949 affect?

CVE-2026-27949 affects plane. Severity is low (CVSS 2.0). Plane is an an open-source project management tool. Prior to 1.3.0, a vulnerability was identified in Plane's authentication flow where a user's email address is included as a query parameter in the URL during error handling (e.g., when an

Q: How urgent is CVE-2026-27949?

Priority 9/100. No elevated risk signals yet.

Routine

LOW 2.0UPGRADE

CVE-2026-27949 is a low-severity flaw (CVSS 2.0) affecting plane. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Plane is an an open-source project management tool. Prior to 1.3.0, a vulnerability was identified in Plane's authentication flow where a user's email address is included as a query parameter in the URL during error handling (e.g., when an invalid magic code is submitted). Transmitting personally identifiable information (PII) via GET request query strings is classified as an insecure design practice. The affected code path is located in the auth

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	2.0 (Low)
Attack vector	Network (remote)
Attack complexity	High
Privileges needed	High
User interaction	Required
EPSS exploit chance	0.2% (top 94%)
CISA exploited list	No
Weakness	CWE-200, CWE-598
Published	2026-04-07
Last modified	2026-07-24

Publisher (CNA): GitHub, Inc. · Vendor: plane

Last updated 2026-07-24 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-04-07 21:17 UTCPublished CVE record published
2026-07-24 23:10 UTCUpdated Record last modified

plane plane UPGRADE

Affected: < 1.3.0

Fixed in: 1.3.0

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy plane || rpm -q plane || plane --version

2. UPGRADE to 1.3.0 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade plane

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade plane

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-27949?

plane: upgrade to 1.3.0. Exact commands for each OS are on this page.

Is CVE-2026-27949 being exploited?

CVE-2026-27949 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-27949 affect?

CVE-2026-27949 affects plane. Severity is low (CVSS 2.0). Plane is an an open-source project management tool. Prior to 1.3.0, a vulnerability was identified in Plane's authentication flow where a user's email address is included as a query parameter in the URL during error handling (e.g., when an

How urgent is CVE-2026-27949?

Priority 9/100. No elevated risk signals yet.

Related CVEs

CVE-2026-46558 HIGH 8.3 UPGRADE Plane is an open-source project management tool
CVE-2026-39843 HIGH 7.7 UPGRADE Plane is an an open-source project management tool
CVE-2026-39374 MEDIUM 6.5 UPGRADE Plane is an an open-source project management tool
CVE-2026-10850 MEDIUM 5.4 DOWNGRADE Plane CE 1.3.1 allows a low-privileged project member to submit arbitrary HTML/JS in the description_html fiel
CVE-2026-30244 HIGH 7.5 UPGRADE Plane is an an open-source project management tool

References

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