CVE-2026-73058Public exploitNetwork attack vector

Unauthenticated SSRF via missing IPv6 blocklist entry

Published Aug 16, 2026 · Updated Aug 16, 2026

Server-side request forgery in Stoat before 0.15.0 allows remote attackers to read internal content via the /proxy and /embed endpoints. In crates/services/january/src/requests.rs, January's IP_BLOCKLIST omits the IPv6 unspecified address ::, and url_is_blacklisted() therefore accepts [::] host literals that Linux routes to loopback. No authentication is required, but impact depends on deployment because the bug exposes only services reachable from January's own loopback namespace or host network.

CVSS severity6.9
Medium
EPSS probability0.24%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Server-side request forgery in Stoat before 0.15.0 allows remote attackers to read internal content via the /proxy and /embed endpoints. In crates/services/january/src/requests.rs, January's IP_BLOCKLIST omits the IPv6 unspecified address ::, and url_is_blacklisted() therefore accepts [::] host literals that Linux routes to loopback. No authentication is required, but impact depends on deployment because the bug exposes only services reachable from January's own loopback namespace or host network.

The record

CVE
CVE-2026-73058
Published
Aug 16, 2026
Updated
Aug 16, 2026
Vendor
Revolt Platforms Ltd
Product
Stoat Backend
Classifications
CWE-918, CAPEC-664, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 16, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 16, 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 <0.15.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Revolt Platforms Ltd · Stoat Backendversion=0 <0.15.0

Published CVSS scores

6.9VulnCheckCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:L/SI:N/SA:N
5.8GitHubCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-918Server-Side Request Forgery (SSRF)
CAPEC-664Server Side Request Forgery
T1190Exploit Public-Facing Application

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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