Authenticated SSRF via unvalidated LFS endpoint
Published Mar 7, 2026 · Updated Mar 7, 2026
SSRF in Soft Serve 0.6.0 through 0.11.3 allows remote authenticated users to read internal HTTP services through SSH repo import. The repo import command passes the user-controlled --lfs-endpoint into an LFS client backed by http.DefaultClient, which does not block private addresses or redirects. Any valid SSH key and an imported repository containing LFS pointers are sufficient; a fake LFS batch response can redirect downloads to internal targets and store their bodies for later retrieval.
Summary
What happened
SSRF in Soft Serve 0.6.0 through 0.11.3 allows remote authenticated users to read internal HTTP services through SSH repo import. The repo import command passes the user-controlled --lfs-endpoint into an LFS client backed by http.DefaultClient, which does not block private addresses or redirects. Any valid SSH key and an imported repository containing LFS pointers are sufficient; a fake LFS batch response can redirect downloads to internal targets and store their bodies for later retrieval.
The record
- CVE
- CVE-2026-30832
- Published
- Mar 7, 2026
- Updated
- Mar 7, 2026
- Vendor
- Charmbracelet
- Product
- Soft Serve
- Classifications
- CWE-918, T1046, T1552.005
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Mar 7, 2026CVE publishedPublication date reported by the CVE source.
- Mar 7, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=>= 0.6.0, < 0.11.4
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
- Authenticated SSH repo-import SSRF proof of conceptproof of concept · unverified
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
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Your stack
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