CVE-2025-54122: Manager-io/Manager allows unauthenticated full read server-side request forgery in "proxy" endpoint

Severity: critical (CVSS 10.0 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.9% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2025-07-21 · updated 2026-06-17
Weakness: CWE-918

Description

Manager-io/Manager is accounting software. A critical unauthenticated full read Server-Side Request Forgery (SSRF) vulnerability has been identified in the proxy handler component of both manager Desktop and Server edition versions up to and including 25.7.18.2519. This vulnerability allows an unauthenticated attacker to bypass network isolation and access restrictions, potentially enabling access to internal services, cloud metadata endpoints, and exfiltration of sensitive data from isolated network segments. This vulnerability is fixed in version 25.7.21.2525.

Affected products

Manager-io Manager: before 25.7.21.2525

References

https://github.com/Manager-io/Manager/security/advisories/GHSA-347w-cgwh-m895

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