GHSA-QJVR-435C-5FJH Nerdbank.MessagePack has a memory amplification DoS in collection deserialization

Nerdbank.MessagePack deserializers for many collection-shaped types trusted the element count declared in MessagePack array and map headers when allocating destination storage. A crafted payload could therefore force large arrays, pooled buffers, dictionaries, or collection instances to be...

Nerdbank.MessagePack has a memory amplification DoS in collection deserialization

Nerdbank.MessagePack deserializers for many collection-shaped types trusted the element count declared in MessagePack array and map headers when allocating destination storage. A crafted payload could therefore force large arrays, pooled buffers, dictionaries, or collection instances to be...

firefox: thunderbird: expat: libexpat in Expat allows attackers to trigger large dynamic memory allocations via a small document that is submitted for parsing

A memory amplification vulnerability in libexpat allows attackers to trigger excessive dynamic memory allocations by submitting specially crafted XML input. A small input 250 KiB can cause the parser to allocate hundreds of megabytes, leading to denial-of-service DoS through memory exhaustion...

firefox: thunderbird: expat: libexpat in Expat allows attackers to trigger large dynamic memory allocations via a small document that is submitted for parsing

A memory amplification vulnerability in libexpat allows attackers to trigger excessive dynamic memory allocations by submitting specially crafted XML input. A small input 250 KiB can cause the parser to allocate hundreds of megabytes, leading to denial-of-service DoS through memory exhaustion...

CVE-2026-8814

Versions of the package exifreader before 4.39.0 are vulnerable to Improper Handling of Highly Compressed Data Data Amplification due to decompressing PNG zTXt metadata without enforcing a built-in maximum decompressed output size. When asynchronous parsing is enabled, a crafted PNG file containi...

CVE-2026-7790 Unbounded chunk-size hex digits in cowlib cause quadratic CPU and memory DoS

Uncontrolled Resource Consumption vulnerability in ninenines cowlib cowhttpte module allows Excessive Allocation. The chunked transfer-encoding parser in cowhttpte accepts an unbounded number of hex digits in the chunk-size field. Each digit causes a bignum multiplication Len 16 + digit, so parsi...

PT-2026-39731

Name of the Vulnerable Software and Affected Versions cowlib versions 0.6.0 through 2.16.0 Description An uncontrolled resource consumption issue in the cow http te module allows for excessive allocation. The chunked transfer-encoding parser accepts an unbounded number of hex digits in the...

firefox: thunderbird: expat: libexpat in Expat allows attackers to trigger large dynamic memory allocations via a small document that is submitted for parsing

A memory amplification vulnerability in libexpat allows attackers to trigger excessive dynamic memory allocations by submitting specially crafted XML input. A small input 250 KiB can cause the parser to allocate hundreds of megabytes, leading to denial-of-service DoS through memory exhaustion...

CVE-2026-34166

LiquidJS is a Shopify / GitHub Pages compatible template engine in pure JavaScript. Prior to 10.25.3, the replace filter in LiquidJS incorrectly accounts for memory usage when the memoryLimit option is enabled. It charges str.length + pattern.length + replacement.length bytes to the memory limite...

CVE-2026-29181

OpenTelemetry-Go is the Go implementation of OpenTelemetry. From 1.36.0 to 1.40.0, multi-value baggage: header extraction parses each header field-value independently and aggregates members across values. This allows an attacker to amplify cpu and allocations by sending many baggage: header lines...

CVE-2026-29181

OpenTelemetry-Go is the Go implementation of OpenTelemetry. From 1.36.0 to 1.40.0, multi-value baggage: header extraction parses each header field-value independently and aggregates members across values. This allows an attacker to amplify cpu and allocations by sending many baggage: header lines...

CVE-2026-33287

LiquidJS is a Shopify / GitHub Pages compatible template engine in pure JavaScript. Prior to version 10.25.1, the replacefirst filter in LiquidJS uses JavaScript's String.prototype.replace which interprets $& as a back reference to the matched substring. The filter only charges memoryLimit for th...

CVE-2026-33287

LiquidJS is a Shopify / GitHub Pages compatible template engine in pure JavaScript. Prior to version 10.25.1, the replacefirst filter in LiquidJS uses JavaScript's String.prototype.replace which interprets $& as a back reference to the matched substring. The filter only charges memoryLimit for th...

CVE-2026-33287

CVE-2026-33287 is not active by itself; connected advisory GHSA-6Q5M-63H6-5X4V documents a concrete vulnerability in LiquidJS. The issue lies in the replace_first filter: it delegates to String.prototype.replace() and charges memoryLimit only for the input, allowing exponential growth of the outp...

CVE-2026-33287 LiquidJS has Exponential Memory Amplification through its replace_first Filter $& Pattern

LiquidJS is a Shopify / GitHub Pages compatible template engine in pure JavaScript. Prior to version 10.25.1, the replacefirst filter in LiquidJS uses JavaScript's String.prototype.replace which interprets $& as a back reference to the matched substring. The filter only charges memoryLimit for th...

CVE-2026-33287 LiquidJS has Exponential Memory Amplification through its replace_first Filter $& Pattern

LiquidJS is a Shopify / GitHub Pages compatible template engine in pure JavaScript. Prior to version 10.25.1, the replacefirst filter in LiquidJS uses JavaScript's String.prototype.replace which interprets $& as a back reference to the matched substring. The filter only charges memoryLimit for th...

CVE-2026-33287 LiquidJS has Exponential Memory Amplification through its replace_first Filter $& Pattern

LiquidJS is a Shopify / GitHub Pages compatible template engine in pure JavaScript. Prior to version 10.25.1, the replacefirst filter in LiquidJS uses JavaScript's String.prototype.replace which interprets $& as a back reference to the matched substring. The filter only charges memoryLimit for th...

CVE-2026-33287

LiquidJS is a Shopify / GitHub Pages compatible template engine in pure JavaScript. Prior to version 10.25.1, the replacefirst filter in LiquidJS uses JavaScript's String.prototype.replace which interprets $& as a back reference to the matched substring. The filter only charges memoryLimit for th...

EUVD-2026-16064

LiquidJS has Exponential Memory Amplification through its replacefirst Filter $& Pattern...

GHSA-6Q5M-63H6-5X4V LiquidJS has Exponential Memory Amplification through its replace_first Filter $& Pattern

Summary The replacefirst filter in LiquidJS uses JavaScript's String.prototype.replace which interprets $& as a backreference to the matched substring. The filter only charges memoryLimit for the input string length, not the amplified output. An attacker can achieve exponential memory amplificati...