VLLM: DoS Via Unbounded Chat_template Jinja2 Rendering Exhausts The Renderer Thread Pool

Summary vLLM renders chat templates by passing the resolved Jinja2 source to "tokenizer.applychattemplate", which compiles and ".render"s it in an "ImmutableSandboxedEnvironment". The sandbox prevents code-execution escapes but imposes no wall-clock timeout, no output-size cap, and no nested-loop...

vLLM: DoS via unbounded chat_template Jinja2 rendering exhausts the renderer thread pool

Summary vLLM renders chat templates by passing the resolved Jinja2 source to tokenizer.applychattemplate, which compiles and .renders it in an ImmutableSandboxedEnvironment. The sandbox prevents code-execution escapes but imposes no wall-clock timeout, no output-size cap, and no nested-loop or...

SUSE CVE-2026-115911

vLLM is an inference and serving engine for large language models. From 0.19.0 until 0.32.0, authenticated callers can supply a request chat template when no server-side --chat-template is configured, or a malicious model repository can provide a template that is compiled and rendered by...

PYSEC-2026-4344

vLLM is an inference and serving engine for large language models. From 0.19.0 until 0.32.0, authenticated callers can supply a request chat template when no server-side --chat-template is configured, or a malicious model repository can provide a template that is compiled and rendered by...

PYSEC-2026-4344

vLLM is an inference and serving engine for large language models. From 0.19.0 until 0.32.0, authenticated callers can supply a request chat template when no server-side --chat-template is configured, or a malicious model repository can provide a template that is compiled and rendered by...

CVE-2026-115911

vLLM is an inference and serving engine for large language models. From 0.19.0 until 0.32.0, authenticated callers can supply a request chat template when no server-side --chat-template is configured, or a malicious model repository can provide a template that is compiled and rendered by...

CVE-2026-115911 vLLM: DoS via unbounded chat_template Jinja2 rendering exhausts the renderer thread pool

vLLM is an inference and serving engine for large language models. From 0.19.0 until 0.32.0, authenticated callers can supply a request chat template when no server-side --chat-template is configured, or a malicious model repository can provide a template that is compiled and rendered by...

CVE-2026-115911 vLLM: DoS via unbounded chat_template Jinja2 rendering exhausts the renderer thread pool

vLLM is an inference and serving engine for large language models. From 0.19.0 until 0.32.0, authenticated callers can supply a request chat template when no server-side --chat-template is configured, or a malicious model repository can provide a template that is compiled and rendered by...

CVE-2026-115911

vLLM is an inference and serving engine for large language models. From 0.19.0 until 0.32.0, authenticated callers can supply a request chat template when no server-side --chat-template is configured, or a malicious model repository can provide a template that is compiled and rendered by...

CVE-2026-115911 vLLM: DoS via unbounded chat_template Jinja2 rendering exhausts the renderer thread pool

vLLM is an inference and serving engine for large language models. From 0.19.0 until 0.32.0, authenticated callers can supply a request chat template when no server-side --chat-template is configured, or a malicious model repository can provide a template that is compiled and rendered by...

CVE-2026-115911

The vLLM inference and serving engine (versions 0.19.0 through 0.32.0 ) is vulnerable to a Denial of Service (DoS) attack due to unbounded Jinja2 rendering in the tokenizer.apply_chat_template() function. Authenticated callers can provide a request chat template (when no server-side template is c...

PT-2026-132748

vLLM is an inference and serving engine for large language models. From 0.19.0 until 0.32.0, authenticated callers can supply a request chat template when no server-side --chat-template is configured, or a malicious model repository can provide a template that is compiled and rendered by...

PT-2026-123434

Name of the Vulnerable Software and Affected Versions vLLM versions 0.19.0 through 0.31.0 Description Authenticated callers can provide a request chat template when no server-side --chat-template is configured. Additionally, a malicious model repository may provide a template that is compiled and...

openSUSE Security Update : java-1_7_0-openjdk (openSUSE-2018-14)

This update for java-170-openjdk fixes the following issues : Security issues fixed : - CVE-2017-10356: Fix issue inside subcomponent Security bsc1064084. - CVE-2017-10274: Fix issue inside subcomponent Smart Card IO bsc1064071. - CVE-2017-10281: Fix issue inside subcomponent Serialization...

Security update for java-1_7_0-openjdk (important)

This update for java-170-openjdk fixes the following issues: Security issues fixed: - CVE-2017-10356: Fix issue inside subcomponent Security bsc1064084. - CVE-2017-10274: Fix issue inside subcomponent Smart Card IO bsc1064071. - CVE-2017-10281: Fix issue inside subcomponent Serialization...

SUSE SLED12 / SLES12 Security Update : java-1_7_0-openjdk (SUSE-SU-2018:0005-1)

This update for java-170-openjdk fixes the following issues: Security issues fixed : - CVE-2017-10356: Fix issue inside subcomponent Security bsc1064084. - CVE-2017-10274: Fix issue inside subcomponent Smart Card IO bsc1064071. - CVE-2017-10281: Fix issue inside subcomponent Serialization...

OpenJDK: insufficient access control checks in ThreadPoolExecutor (Libraries, 8172204)

Vulnerability in the Java SE, Java SE Embedded component of Oracle Java SE subcomponent: Libraries. Supported versions that are affected are Java SE: 6u151, 7u141 and 8u131; Java SE Embedded: 8u131. Easily exploitable vulnerability allows unauthenticated attacker with network access via multiple...

OpenJDK: insufficient access control checks in ThreadPoolExecutor (Libraries, 8172204)

Vulnerability in the Java SE, Java SE Embedded component of Oracle Java SE subcomponent: Libraries. Supported versions that are affected are Java SE: 6u151, 7u141 and 8u131; Java SE Embedded: 8u131. Easily exploitable vulnerability allows unauthenticated attacker with network access via multiple...

USN-3396-1: OpenJDK 7 vulnerabilities

It was discovered that the JPEGImageReader class in OpenJDK would incorrectly read unused image data. An attacker could use this to specially construct a jpeg image file that when opened by a Java application would cause a denial of service. CVE-2017-10053 It was discovered that the JAR verifier ...

OpenJDK: insufficient access control checks in ThreadPoolExecutor (Libraries, 8172204)

Vulnerability in the Java SE, Java SE Embedded component of Oracle Java SE subcomponent: Libraries. Supported versions that are affected are Java SE: 6u151, 7u141 and 8u131; Java SE Embedded: 8u131. Easily exploitable vulnerability allows unauthenticated attacker with network access via multiple...