CVE-2026-91773Public exploitNetwork attack vectorHinoki check available

Cross-repository metadata disclosure via global lock IDs

Published Sep 15, 2026 · Updated Sep 15, 2026

Authorization bypass in Charmbracelet Soft Serve 0.7.1 through 0.11.6 allows remote authenticated users to read private lock metadata. The HTTP Git LFS list and unlock handlers pass an attacker-controlled global lock ID to a store query that omits the repository ID. Write access to any repository is sufficient to expose locked paths, usernames, timestamps, and lock existence from inaccessible repositories; file contents remain protected and no data is changed.

CVSS severity4.3
Medium
EPSS probability0.20%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
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Summary

What happened

Authorization bypass in Charmbracelet Soft Serve 0.7.1 through 0.11.6 allows remote authenticated users to read private lock metadata. The HTTP Git LFS list and unlock handlers pass an attacker-controlled global lock ID to a store query that omits the repository ID. Write access to any repository is sufficient to expose locked paths, usernames, timestamps, and lock existence from inaccessible repositories; file contents remain protected and no data is changed.

The record

CVE
CVE-2026-91773
Published
Sep 15, 2026
Updated
Sep 15, 2026
Vendor
Charmbracelet
Product
Soft Serve
Classifications
CWE-639, T1213.003
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 15, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 15, 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.

  1. Affected versionversion=0.7.1 <0.12.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Charmbracelet · Soft Serveversion=0.7.1 <0.12.0

Published CVSS scores

4.3CharmbraceletCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

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.

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No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-639Authorization Bypass Through User-Controlled Key
T1213.003Code Repositories

Public exploit references

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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