CVE-2026-63077: Critical unauthenticated remote code execution in JetBrains TeamCity

Overview On July 27, 2026, JetBrains published a security advisory for CVE-2026-63077, a critical unauthenticated vulnerability affecting all versions of TeamCity On-Premises. The issue is classified as deserialization of untrusted data and has a CVSS score of 9.8. An unauthenticated remote...

JLSEC-2026-804 Deserialization of untrusted data in IPC and Parquet readers in the Apache Arrow R package...

Deserialization of untrusted data in IPC and Parquet readers in the Apache Arrow R package versions 4.0.0 through 16.1.0 allows arbitrary code execution. An application is vulnerable if it reads Arrow IPC, Feather or Parquet data from untrusted sources for example, user-supplied input files. This...

CVE-2026-58163 Apache Traffic Server: Cache deserialization and lifetime errors can corrupt state or crash the server

Apache Traffic Server mishandles on-disk cache fields and object lifetimes, corrupting state or crashing. This issue affects Apache Traffic Server: from 8.0.0 through 8.1.9, from 9.0.0 through 9.2.14, from 10.0.0 through 10.1.3. Users are recommended to upgrade to version 9.2.15 or 10.1.4, which...

CVE-2026-58163 Apache Traffic Server: Cache deserialization and lifetime errors can corrupt state or crash the server

Apache Traffic Server mishandles on-disk cache fields and object lifetimes, corrupting state or crashing. This issue affects Apache Traffic Server: from 8.0.0 through 8.1.9, from 9.0.0 through 9.2.14, from 10.0.0 through 10.1.3. Users are recommended to upgrade to version 9.2.15 or 10.1.4, which...

CVE-2026-58163

CVE-2026-58163 (Apache Traffic Server) : The issue arises from mishandling on-disk cache fields and object lifetimes, leading to state corruption or crashes. Affected versions are 8.0.0–8.1.9, 9.0.0–9.2.14, and 10.0.0–10.1.3. Upstream fixes are available in 9.2.15 and 10.1.4. If you rely on these...

CVE-2026-63232

A SQL injection and unsafe deserialisation vulnerability in Koollab LMS allowed an authenticated attacker to inject through the assessment reinforcement endpoint, control data passed to unserialize, write a webshell to a publicly accessible location, and execute arbitrary code on the server...

CVE-2026-63233

A SQL injection and unsafe deserialisation vulnerability in Koollab LMS allowed an authenticated attacker to inject through the assessment overall answer endpoint, control data passed to unserialize, write a webshell to a publicly accessible location, and execute arbitrary code on the server...

CVE-2026-63234

A SQL injection and unsafe deserialisation vulnerability in Koollab LMS allowed an authenticated attacker to inject through the manual mark assessment endpoint, control data passed to unserialize, write a webshell to a publicly accessible location, and execute arbitrary code on the server...

CVE-2026-63234 SQL injection and unsafe deserialisation vulnerability

A SQL injection and unsafe deserialisation vulnerability in Koollab LMS allowed an authenticated attacker to inject through the manual mark assessment endpoint, control data passed to unserialize, write a webshell to a publicly accessible location, and execute arbitrary code on the server...

CVE-2026-63234

The provided records identify CVE-2026-63234 in Koollab LMS as a SQL injection and unsafe deserialization vulnerability. An authenticated attacker can abuse the manual mark assessment endpoint to influence data passed to unserialize() , enabling writing a webshell to a publicly accessible locatio...

EUVD-2026-50129

A SQL injection and unsafe deserialisation vulnerability in Koollab LMS allowed an authenticated attacker to inject through the manual mark assessment endpoint, control data passed to unserialize, write a webshell to a publicly accessible location, and execute arbitrary code on the server...

CVE-2026-63233 SQL injection and unsafe deserialisation vulnerability

A SQL injection and unsafe deserialisation vulnerability in Koollab LMS allowed an authenticated attacker to inject through the assessment overall answer endpoint, control data passed to unserialize, write a webshell to a publicly accessible location, and execute arbitrary code on the server...

EUVD-2026-50128

A SQL injection and unsafe deserialisation vulnerability in Koollab LMS allowed an authenticated attacker to inject through the assessment overall answer endpoint, control data passed to unserialize, write a webshell to a publicly accessible location, and execute arbitrary code on the server...

CVE-2026-63233

A SQL injection and unsafe deserialisation vulnerability in Koollab LMS allowed an authenticated attacker to inject through the assessment overall answer endpoint, control data passed to unserialize, write a webshell to a publicly accessible location, and execute arbitrary code on the server...

EUVD-2026-50127

A SQL injection and unsafe deserialisation vulnerability in Koollab LMS allowed an authenticated attacker to inject through the assessment reinforcement endpoint, control data passed to unserialize, write a webshell to a publicly accessible location, and execute arbitrary code on the server...

CVE-2026-63232

A SQL injection and unsafe deserialisation vulnerability in Koollab LMS allowed an authenticated attacker to inject through the assessment reinforcement endpoint, control data passed to unserialize, write a webshell to a publicly accessible location, and execute arbitrary code on the server...

CVE-2026-63232 SQL injection and unsafe deserialisation vulnerability

A SQL injection and unsafe deserialisation vulnerability in Koollab LMS allowed an authenticated attacker to inject through the assessment reinforcement endpoint, control data passed to unserialize, write a webshell to a publicly accessible location, and execute arbitrary code on the server...

CVE-2026-63232

CVE-2026-63232 relates to a vulnerability in Koollab LMS described as a SQL injection and unsafe deserialization issue. The authenticated attacker can target the assessment reinforcement endpoint, influence data passed to unserialize(), write a webshell to a publicly accessible location, and pote...

XStream <1.4.14 - Remote Code Execution

XStream before 1.4.14 is susceptible to remote code execution. An attacker can run arbitrary shell commands by manipulating the processed input stream, thereby making it possible to obtain sensitive information, modify data, and/or execute unauthorized administrative operations in the context of...

PT-2026-65705

A SQL injection and unsafe deserialisation vulnerability in Koollab LMS allowed an authenticated attacker to inject through the manual mark assessment endpoint, control data passed to unserialize, write a webshell to a publicly accessible location, and execute arbitrary code on the server...