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Pendulum CVE-2026-25359

| EUVD-2026-15681 HIGH
Deserialization of Untrusted Data (CWE-502)
2026-03-25 Patchstack GHSA-w7gm-q7h5-8h8w
Deserialization Pendulum
8.8
CVSS 3.1 · NVD
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Severity by source

NVD PRIMARY
8.8 HIGH
AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

Lifecycle Timeline

7
Re-analysis Queued
Apr 24, 2026 - 16:37 vuln.today
cvss_changed
Analysis Updated
Apr 16, 2026 - 06:15 EUVD-patch-fix
executive_summary
Re-analysis Queued
Apr 16, 2026 - 05:29 backfill_euvd_patch
patch_released
Patch available
Apr 16, 2026 - 05:29 EUVD
3.1.5
EUVD ID Assigned
Mar 25, 2026 - 16:47 euvd
EUVD-2026-15681
Analysis Generated
Mar 25, 2026 - 16:47 vuln.today
CVE Published
Mar 25, 2026 - 16:14 nvd
HIGH 8.8

DescriptionCVE.org

Deserialization of Untrusted Data vulnerability in rascals Pendulum pendulum allows Object Injection.This issue affects Pendulum: from n/a through < 3.1.5.

AnalysisAI

A deserialization of untrusted data vulnerability exists in Pendulum (a PHP datetime library) versions prior to 3.1.5, allowing attackers to perform object injection attacks. The vulnerability affects the rascals Pendulum library through unvalidated deserialization of user-supplied data. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access
Authenticated user sends crafted serialized payload
Exploit
Pendulum deserializes untrusted data
Execution
Object injection occurs
Impact
Arbitrary code execution with full privileges
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Vulnerability AssessmentAI

Exploitation Authenticated attacker with login credentials to an application using Pendulum library versions before 3.1.5. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment Without a published CVSS vector or EPSS score, the real-world risk assessment relies on the vulnerability class and affected product profile. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario An attacker crafts a malicious serialized PHP object containing a gadget chain that executes code when unserialized. If a web application accepts user input (via POST, GET, cookies, or API parameters) and passes it to unserialize() without validation, the attacker can trigger instantiation of arbitrary objects. …
Remediation Immediately upgrade Pendulum to version 3.1.5 or later to patch the deserialization vulnerability. … Detailed patch versions, workarounds, and compensating controls in full report.
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Recommended ActionAI

Within 24 hours: Inventory all systems and applications using Pendulum library and identify current versions via composer.lock or package managers. …

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CVE-2026-25359 vulnerability details – vuln.today
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