guzzlehttp Guzzle up to 7.15.0 Cookie Jar improper authorization

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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4.1$0-$5k3.14+

Summaryinfo

A vulnerability labeled as problematic has been found in guzzlehttp Guzzle up to 7.15.0. The impacted element is an unknown function of the component Cookie Jar. Such manipulation leads to improper authorization. This vulnerability is traded as CVE-2026-67355. The attack may be launched remotely. There is no exploit available.

Detailsinfo

A vulnerability was found in guzzlehttp Guzzle up to 7.15.0 and classified as problematic. Affected by this issue is an unknown part of the component Cookie Jar. The manipulation with an unknown input leads to a improper authorization vulnerability. Using CWE to declare the problem leads to CWE-285. The product does not perform or incorrectly performs an authorization check when an actor attempts to access a resource or perform an action. Impacted is confidentiality. CVE summarizes:

guzzlehttp/guzzle versions before 7.15.1 fail to preserve host-only cookie scope, storing the request host in the Domain field instead of marking cookies as host-only. Attackers controlling child hosts can receive host-only cookies intended only for parent hosts, potentially disclosing session identifiers and authorization tokens when the same cookie jar is reused across trust boundaries.

The advisory is shared for download at github.com. This vulnerability is handled as CVE-2026-67355 since 07/29/2026. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. Successful exploitation requires user interaction by the victim. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1548.002.

Upgrading to version 7.15.1 eliminates this vulnerability.

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Productinfo

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.3
VulDB Meta Temp Score: 4.1

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Improper authorization
CWE: CWE-285 / CWE-266
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Guzzle 7.15.1

Timelineinfo

07/29/2026 CVE reserved
08/01/2026 +3 days Advisory disclosed
08/01/2026 +0 days VulDB entry created
08/01/2026 +0 days VulDB entry last update

Sourcesinfo

Advisory: github.com
Status: Confirmed

CVE: CVE-2026-67355 (🔒)
GCVE (CVE): GCVE-0-2026-67355
GCVE (VulDB): GCVE-100-385304

Entryinfo

Created: 08/01/2026 15:35
Changes: 08/01/2026 15:35 (55)
Complete: 🔍
Cache ID: 216::103

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