smarty-php Smarty up to 5.8.3 Stream information disclosure

CVSS Meta Temp Score
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CTI Interest Score
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4.1$0-$5k1.08+

Summaryinfo

A vulnerability was found in smarty-php Smarty up to 5.8.3 and classified as problematic. The impacted element is an unknown function of the component Stream Handler. Such manipulation leads to information disclosure. This vulnerability is referenced as CVE-2026-62996. It is possible to launch the attack remotely. No exploit is available.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in smarty-php Smarty up to 5.8.3. Affected by this issue is an unknown code of the component Stream Handler. The manipulation with an unknown input leads to a information disclosure vulnerability. Using CWE to declare the problem leads to CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. Impacted is confidentiality. CVE summarizes:

Smarty is a template engine for PHP, facilitating the separation of presentation (HTML/CSS) from application logic. From 5.0.0 until 5.8.4, Smarty's stream: resource-name handling does not adequately restrict which PHP stream wrappers and filter chains can be referenced from a template, allowing a php://filter-wrapped resource name to be used to read the contents of arbitrary local files accessible to the PHP process. An attacker able to author or influence a template's resource reference could exploit this to disclose sensitive file contents outside the intended template/config scope. This issue is fixed in version 5.8.4.

The advisory is shared for download at github.com. This vulnerability is handled as CVE-2026-62996 since 07/15/2026. The exploitation is known to be easy. The attack may be launched remotely. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1592.

Upgrading to version 5.8.4 eliminates this vulnerability.

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Productinfo

Type

Vendor

Name

Version

License

Website

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: Information disclosure
CWE: CWE-200 / CWE-284 / 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: Smarty 5.8.4

Timelineinfo

07/15/2026 CVE reserved
08/07/2026 +23 days Advisory disclosed
08/07/2026 +0 days VulDB entry created
08/07/2026 +0 days VulDB entry last update

Sourcesinfo

Product: github.com

Advisory: github.com
Status: Confirmed

CVE: CVE-2026-62996 (🔒)
GCVE (CVE): GCVE-0-2026-62996
GCVE (VulDB): GCVE-100-387020

Entryinfo

Created: 08/07/2026 17:36
Changes: 08/07/2026 17:36 (56)
Complete: 🔍
Cache ID: 216::103

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