CVE-2026-69246Network attack vector

SSRF via noncanonical transport host interpretation

Published Aug 3, 2026 · Updated Aug 3, 2026

SSRF in Guzzle before 7.15.2 and Guzzle 8.0.0 allows remote attackers to reach hosts excluded by application checks via crafted URIs. The cURL handlers pass the URI unchanged to libcurl while sending a separate Host header, allowing percent decoding or IDNA mapping to change the connection authority after application validation. Exploitation requires an application to accept an attacker-influenced URI and make a host-based access decision before Guzzle sends it; exposed responses can be read, and proxy or credential-routing decisions can also diverge.

CVSS severity7.2
High
EPSS probability0.21%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

SSRF in Guzzle before 7.15.2 and Guzzle 8.0.0 allows remote attackers to reach hosts excluded by application checks via crafted URIs. The cURL handlers pass the URI unchanged to libcurl while sending a separate Host header, allowing percent decoding or IDNA mapping to change the connection authority after application validation. Exploitation requires an application to accept an attacker-influenced URI and make a host-based access decision before Guzzle sends it; exposed responses can be read, and proxy or credential-routing decisions can also diverge.

The record

CVE
CVE-2026-69246
Published
Aug 3, 2026
Updated
Aug 3, 2026
Vendor
Guzzle
Product
Guzzle
Classifications
CWE-941, CWE-436, CWE-180, CWE-918, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 3, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 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=< 7.15.2
  2. Affected versionversion=>= 8.0.0, < 8.0.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Guzzle · Guzzleversion=< 7.15.2; version=>= 8.0.0, < 8.0.1

Published CVSS scores

7.2GitHub, Inc.CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/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 exploitUnconfirmed

Weakness, pattern, technique

CWE-941Incorrectly Specified Destination in a Communication Channel
CWE-436Interpretation Conflict
CWE-180Incorrect Behavior Order: Validate Before Canonicalize
CWE-918Server-Side Request Forgery (SSRF)
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

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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