CVE-2026-50522
Deserialization of untrusted data in Microsoft Office SharePoint allows an unauthorized attacker to execute code over a network.
CVSS
9.8
Crítico
EPSS
20.3%
p97
KEV
—
Exploit Today
29
0-100
Publicado: 14 jul 2026 · Última mod.: 15 jul 2026 · CWE-502
19.7%EPSS · 30 días20.3%
2026-07-152026-07-16
Deserialization of untrusted data in Microsoft Office SharePoint allows an unauthorized attacker to execute code over a network.
CVECVSSEPSSKEVRExplotTítuloVis.
CVE-2021-422379.8 CRÍ99.9%
KEV—80Sitecore XP Remote Command Execution Vulnerability7dCVE-2026-456598.8 ALT86.8%
KEV—76Microsoft SharePoint Server Deserialization of Untrusted Data Vulnerability14dCVE-2026-125699.8 CRÍ66.0%
KEV—70PTC Windchill and FlexPLM Improper Input Validation Vulnerability16dCVE-2025-560059.8 CRÍ96.7%
——29An undocumented and unsafe feature in the PLY (Python Lex-Yacc) library 3.11 allows Remote Code Execution (RCE) via the `picklefile` parameter in the `yacc()` function. This parameter accepts a `.pkl` file that is deserialized with `pickle.load()` without validation. Because `pickle` allows execution of embedded code via `__reduce__()`, an attacker can achieve code execution by passing a malicious pickle file. The parameter is not mentioned in official documentation or the GitHub repository, yet it is active in the PyPI version. This introduces a stealthy backdoor and persistence risk. NOTE: A third-party states that this vulnerability should be rejected because the proof of concept does not demonstrate arbitrary code execution and fails to complete successfully.2dCVE-2026-258749.8 CRÍ96.5%
——29LeRobot through 0.5.1 contains an unsafe deserialization vulnerability in the async inference pipeline where pickle.loads() is used to deserialize data received over unauthenticated gRPC channels without TLS in the policy server and robot client components. An unauthenticated network-reachable attacker can achieve arbitrary code execution on the server or client by sending a crafted pickle payload through the SendPolicyInstructions, SendObservations, or GetActions gRPC calls.2dCVE-2026-534358.8 ALT96.3%
——29In Jenkins 2.567 and earlier, LTS 2.555.2 and earlier, it is possible for attackers to have Jenkins deserialize arbitrary types defined in Jenkins core or plugins from an attacker-controlled `config.xml` submission in a way that allows them to handle HTTP requests afterwards.
This can be used to impersonate any user and send HTTP requests on their behalf, up to and including use of the Script Console to run arbitrary code, or to read arbitrary files from the Jenkins controller.2d