Exploit for CVE-2026-42533

CVE-2026-42533 — nginx Heap Buffer Overflow PoC Exploit Pre...

Cross-site Scripting (XSS)

Mistune is vulnerable to Cross-Site Scripting XSS. The vulnerability is due to improper escaping of the Admonition directive :class: option when rendering HTML, which allows an attacker to inject malicious attributes and execute arbitrary JavaScript in a victim's browser...

GHSA-GCJH-H69Q-9W9G cel-go: JSON Private Fields Exposed via NativeTypes and ParseStructTag

The function ext.NativeTypesParseStructTag"json" does not honour the encoding/json skip directive json:"-". Fields tagged json:"-" are registered in the CEL type system under the literal name "-" and are readable from any user-submitted CEL expression via dynobj"-". Additionally, newNativeTypes...

nginx: Fix of CVE-2026-42533

CVE-2026-42533: fix heap buffer overflow in the map directive with regex matching script engine buffer overrun protection...

Security update for nasm

This update for nasm fixes the following issues CVE-2026-6067: heap buffer overflow vulnerability due to a lack of bounds checking in the objdirective function bsc1261986. CVE-2026-6068: heap use after free vulnerability in response file processing bsc1261985. Patch Instructions: To install this...

SUSE-SU-2026:3178-1 Security update for nasm

This update for nasm fixes the following issues - CVE-2026-6067: heap buffer overflow vulnerability due to a lack of bounds checking in the objdirective function bsc1261986. - CVE-2026-6068: heap use after free vulnerability in response file processing bsc1261985...

GHSA-PG7V-JWJ7-P798 Pillow EpsImagePlugin negative %%BeginBinary byte count causes infinite loop denial of service

Summary Pillow's EPS parser PIL/EpsImagePlugin.py accepts a negative byte count in the %%BeginBinary directive. A crafted EPS file can cause Image.open to seek backwards to the same directive and parse it repeatedly, resulting in an infinite loop and CPU denial of service. The issue is triggered...

EUVD-2026-43741

Pillow EpsImagePlugin negative %%BeginBinary byte count causes infinite loop denial of service...

GHSA-R4RV-85JG-W4MF Mistune: Arbitrary File Read via Include directive path traversal

Summary A path traversal issue exists in mistune's Include directive when markdown files are processed using md.read. A crafted include path can cause files outside the intended markdown directory to be accessed. Details The issue occurs in the Include.parse method where user-supplied paths are...

EUVD-2026-42334

Mistune: XSS via unescaped class option in Admonition directive...

GHSA-G97X-GVCM-X72H Mistune: XSS via unescaped class option in Admonition directive

In src/mistune/directives/admonition.py, the renderadmonition function concatenates the :class: option directly into the HTML class attribute without escaping lines 63-68. This allows attribute injection and XSS even when HTMLRendererescape=True is used. The directive name parameter is safe...

Mistune: XSS via unescaped class option in Admonition directive

In src/mistune/directives/admonition.py, the renderadmonition function concatenates the :class: option directly into the HTML class attribute without escaping lines 63-68. This allows attribute injection and XSS even when HTMLRendererescape=True is used. The directive name parameter is safe...

GHSA-8MPJ-M6QM-5QR8 Mistune directives/include: mutual `.. include::` recursion crashes the renderer with `RecursionError`, denial of service via two attacker-controlled markdown files

Summary Type: Uncontrolled recursion via mutual include. The Include directive checks for direct self-reference a.md cannot include a.md, but does not detect indirect cycles. Two markdown files that include each other a.md → includes b.md → includes a.md cause unbounded recursion until Python's...

EUVD-2026-42339

Mistune directives/include: mutual .. include:: recursion crashes the renderer with RecursionError, denial of service via two attacker-controlled markdown files...

BIT-NGINX-2026-42533 NGINX Map directive and Regex matching vulnerability

A vulnerability exists in NGINX Plus and NGINX Open Source when a map directive uses regex matching and a string expression references the map's regex capture variables before referencing the map output variable. Alternatively, the same result could be achieved by using a non-cacheable variable i...

BIT-NGINX-AGENT-2026-60062 NGINX Agent Vulnerability

The NGINX Agent configdirs directive allows a low-privileged attacker to gain limited read and write access to files outside of the designated secure directory. The configdirs directive required for this issue can also be configured through NGINX Instance Manager. A successful exploit may allow a...

USN-8563-1 nginx vulnerabilities

It was discovered that nginx incorrectly handled certain map directives using regex matching and capture variables. A remote attacker could use this issue to cause nginx to crash, resulting in a denial of service, or possibly execute arbitrary code. CVE-2026-42533 It was discovered that nginx had...

USN-8563-1: nginx vulnerabilities

It was discovered that nginx incorrectly handled certain map directives using regex matching and capture variables. A remote attacker could use this issue to cause nginx to crash, resulting in a denial of service, or possibly execute arbitrary code. CVE-2026-42533 It was discovered that nginx had...

Amazon Linux 2023 : runfinch-finch (ALAS2023-2026-1972)

It is, therefore, affected by a vulnerability as referenced in the ALAS2023-2026-1972 advisory. containerd is an open-source container runtime. In versions prior to 1.7.32, 2.0.9, 2.2.4 and 2.3.1, containers launched with a numeric User directive that cannot be parsed as a 32-bit integer are...

SUSE CVE-2026-50289

systeminformation is a System and OS information library for node.js. Prior to 5.31.7, networkInterfaces on Linux is vulnerable to OS command injection through the Debian/Ubuntu interfaces5 source directive because lib/network.js checkLinuxDCHPInterfaces reads /etc/network/interfaces, extracts a...