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01 Record

CVE-2025-23221

Fedify has an Infinite loop and Blind SSRF found inside the Webfinger mechanism

MediumPUBLISHEDCNA: GitHub_M
CNA base score5.4 CVSS v3.xCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:N/A:L
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02 Description

Fedify has an Infinite loop and Blind SSRF found inside the Webfinger mechanism

03 Exploitation and scoring

Exploitation
Public exploit code exists. CISA's assessment records a public proof of concept. That is not a report of exploitation in the wild.
SSVC decision
  • ExploitationpocPublic proof-of-concept exploit code exists. Not a report of exploitation in the wild.
  • AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
  • Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.
CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.
EPSS probability
0.61% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 49.4% of scored records. A rank, not a probability.
NVD base score
5.4 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:N/A:L
NVD analysis status
Deferred. NVD last modified this record on 2026-06-17.
Red Hat severity
No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2025-01-20 16:49Z1 YR AGO
Last updated
2025-01-21 14:49Z1 YR AGO
Reserved
2025-01-13
Assigning CNA
GitHub_M
Record state
PUBLISHED
Severity
Medium (CVSS 5.4)
CNA CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:N/A:L
Weaknesses
  • CWE-835Loop with Unreachable Exit Condition ('Infinite Loop')Base
  • CWE-918Server-Side Request Forgery (SSRF)Base
Data version
5.1
Document digest
9f48ffd4bae216da4894b94f74c137dbb1e2383ebe9d6fca623e4f93985d71fb

05 Affected products

VendorProductVersionsPlatforms
dahliafedify< 1.0.14, >= 1.1.0, < 1.1.11, >= 1.2.0, < 1.2.11, >= 1.3.0, < 1.3.4—

06 References