CVE-2026-15508Public exploitNetwork attack vector

Authenticated SSRF via unchecked provider URL joining

Published Jul 12, 2026 · Updated Jul 12, 2026

SSRF in Helicone AI Gateway 0.2.0-beta.0 through 0.2.0-beta.30 allows remote authenticated users to reach internal services. The build_target_url function passes the user-controlled extracted_path_and_query value to Url::join without rejecting input that changes the provider destination. Low-privilege API access and gateway egress are required; successful requests can read cloud metadata or probe internal network services.

CVSS severity6.3
Medium
EPSS probability0.35%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

SSRF in Helicone AI Gateway 0.2.0-beta.0 through 0.2.0-beta.30 allows remote authenticated users to reach internal services. The build_target_url function passes the user-controlled extracted_path_and_query value to Url::join without rejecting input that changes the provider destination. Low-privilege API access and gateway egress are required; successful requests can read cloud metadata or probe internal network services.

The record

CVE
CVE-2026-15508
Published
Jul 12, 2026
Updated
Jul 12, 2026
Vendor
Helicone
Product
Helicone AI Gateway
Classifications
CWE-918, T1552.005, T1190
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jul 12, 2026CVE publishedPublication date reported by the CVE source.
  2. Jul 12, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0.2.0-beta.0
  2. Affected versionversion=0.2.0-beta.1
  3. Affected versionversion=0.2.0-beta.10
  4. Affected versionversion=0.2.0-beta.11
  5. Affected versionversion=0.2.0-beta.12
  6. Affected versionversion=0.2.0-beta.13
  7. Affected versionversion=0.2.0-beta.14
  8. Affected versionversion=0.2.0-beta.15
  9. Affected versionversion=0.2.0-beta.16
  10. Affected versionversion=0.2.0-beta.17
  11. Affected versionversion=0.2.0-beta.18
  12. Affected versionversion=0.2.0-beta.19
  13. Affected versionversion=0.2.0-beta.2
  14. Affected versionversion=0.2.0-beta.20
  15. Affected versionversion=0.2.0-beta.21
  16. Affected versionversion=0.2.0-beta.22
  17. Affected versionversion=0.2.0-beta.23
  18. Affected versionversion=0.2.0-beta.24
  19. Affected versionversion=0.2.0-beta.25
  20. Affected versionversion=0.2.0-beta.26
  21. Affected versionversion=0.2.0-beta.27
  22. Affected versionversion=0.2.0-beta.28
  23. Affected versionversion=0.2.0-beta.29
  24. Affected versionversion=0.2.0-beta.3
  25. Affected versionversion=0.2.0-beta.30
  26. Affected versionversion=0.2.0-beta.4
  27. Affected versionversion=0.2.0-beta.5
  28. Affected versionversion=0.2.0-beta.6
  29. Affected versionversion=0.2.0-beta.7
  30. Affected versionversion=0.2.0-beta.8
  31. Affected versionversion=0.2.0-beta.9

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Helicone · Helicone AI Gatewayversion=0.2.0-beta.0; version=0.2.0-beta.1; version=0.2.0-beta.10; version=0.2.0-beta.11; version=0.2.0-beta.12; version=0.2.0-beta.13; version=0.2.0-beta.14; version=0.2.0-beta.15; version=0.2.0-beta.16; version=0.2.0-beta.17; version=0.2.0-beta.18; version=0.2.0-beta.19; version=0.2.0-beta.2; version=0.2.0-beta.20; version=0.2.0-beta.21; version=0.2.0-beta.22; version=0.2.0-beta.23; version=0.2.0-beta.24; version=0.2.0-beta.25; version=0.2.0-beta.26; version=0.2.0-beta.27; version=0.2.0-beta.28; version=0.2.0-beta.29; version=0.2.0-beta.3; version=0.2.0-beta.30; version=0.2.0-beta.4; version=0.2.0-beta.5; version=0.2.0-beta.6; version=0.2.0-beta.7; version=0.2.0-beta.8; version=0.2.0-beta.9

Published CVSS scores

6.5VulDBAV:N/AC:L/Au:S/C:P/I:P/A:P
2.1VulDBCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
6.3VulDBCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

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

Weakness, pattern, technique

CWE-918Server-Side Request Forgery (SSRF)
T1552.005Unsecured Credentials Cloud Instance Metadata API
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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