High severity · published Oct 5, 2026
CVE-2026-105628
Plane: OAuth Avatar Redirect SSRF Leads to Internal Data Exfiltration via Static Asset Endpoint
7.6
CVSS
0.3%
EPSS
No
On KEV
Description
Plane is an open-source project management tool. Prior to 1.4.0, Plane's OAuth avatar synchronization flow fetches avatar_url from provider user data through a server-side HTTP request without internal IP validation and follows redirects by default. An attacker can provide an avatar URL that redirects to an internal-only resource, such as a metadata endpoint, and Plane uploads the fetched response as a user avatar file. The object is then exposed through /api/assets/v2/static/{asset_id}/, allowing exfiltration of internally fetched content. This issue is fixed in 1.4.0.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
High
User interaction
None
Confidentiality
High
Integrity
Low
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 21% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
PL
plane · makeplane
< 1.4.0 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-105628
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-105628
x_refsource_CONFIRM
https://github.com/makeplane/plane/security/advisories/GHSA-cv9p-325g-wmv5
x_refsource_MISC
https://github.com/makeplane/plane/pull/9163
x_refsource_MISC
https://github.com/makeplane/plane/commit/04622ce1188c4680951f0001e35efb342fe51615
x_refsource_MISC
https://github.com/makeplane/plane/releases/tag/v1.4.0
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