CVE-2026-21717

A flaw in V8's string hashing mechanism causes integer-like strings to be hashed to their numeric value, making hash collisions trivially predictable. By crafting a request that causes many such collisions in V8's internal string table, an attacker can significantly degrade performance of the...

OpenClaw: Feishu webhook reads and parses unauthenticated request bodies before signature validation

Summary Feishu webhook reads and parses unauthenticated request bodies before signature validation Affected Packages / Versions - Package: openclaw - Affected versions: = 2026.3.24 - First patched version: 2026.3.25 - Latest published npm version at verification time: 2026.3.24 Details Feishu...

EUVD-2026-17020

OpenClaw before 2026.3.13 reads and buffers Telegram webhook request bodies before validating the x-telegram-bot-api-secret-token header, allowing unauthenticated attackers to exhaust server resources. Attackers can send POST requests to the webhook endpoint to force memory consumption, socket...

GHSA-C447-W54G-F55J Duplicate Advisory: OpenClaw Telegram webhook request bodies were read before secret validation, enabling unauthenticated resource exhaustion

Duplicate Advisory This advisory has been withdrawn because it is a duplicate of GHSA-jq3f-vjww-8rq7. This link is maintained to preserve external references. Original Description OpenClaw before 2026.3.13 reads and buffers Telegram webhook request bodies before validating the...

CVE-2026-32980

OpenClaw before 2026.3.13 reads and buffers Telegram webhook request bodies prior to validating the x-telegram-bot-api-secret-token header, enabling unauthenticated attackers to exhaust server resources. Attack vectors involve POST requests to the webhook endpoint that can trigger memory consumpt...

CVE-2026-29772

Astro is a web framework. Prior to version 10.0.0, Astro's Server Islands POST handler buffers and parses the full request body as JSON without enforcing a size limit. Because JSON.parse allocates a V8 heap object for every element in the input, a crafted payload of many small JSON objects achiev...

@grackle-ai/server JSON.parse lacks try-catch logic in its gRPC Service AdapterConfig Handling

Impact JSON.parseenv.adapterConfig is called without error handling in three locations within the gRPC service. While the data originates from the server's own SQLite database and should always be valid JSON, database corruption, migration errors, or unexpected state could cause an unhandled...

SUSE CVE-2026-27896

The Go MCP SDK used Go's standard encoding/json.Unmarshal for JSON-RPC and MCP protocol message parsing in versions prior to 1.3.1. Go's standard library performs case-insensitive matching of JSON keys to struct field tags - a field tagged json:"method" would also match "Method", "METHOD", etc...

GHSA-3RMJ-9M5H-8FPV Astro: Memory exhaustion DoS due to missing request body size limit in Server Islands

Summary Astro's Server Islands POST handler buffers and parses the full request body as JSON without enforcing a size limit. Because JSON.parse allocates a V8 heap object for every element in the input, a crafted payload of many small JSON objects achieves 15x memory amplification wire bytes to...

Astro: Memory exhaustion DoS due to missing request body size limit in Server Islands

Summary Astro's Server Islands POST handler buffers and parses the full request body as JSON without enforcing a size limit. Because JSON.parse allocates a V8 heap object for every element in the input, a crafted payload of many small JSON objects achieves 15x memory amplification wire bytes to...

CVE-2026-29772

Astro is a web framework. Prior to version 10.0.0, Astro's Server Islands POST handler buffers and parses the full request body as JSON without enforcing a size limit. Because JSON.parse allocates a V8 heap object for every element in the input, a crafted payload of many small JSON objects achiev...

PT-2026-27479

Name of the Vulnerable Software and Affected Versions Astro versions prior to 10.0.0 Description Astro's Server Islands POST handler does not enforce a size limit when buffering and parsing JSON request bodies. The JSON.parse function allocates a V8 heap object for each element in the input,...

GO-2026-4770 Improper handling of null Unicode character when parsing JSON in github.com/modelcontextprotocol/go-sdk

Improper handling of null Unicode character when parsing JSON in github.com/modelcontextprotocol/go-sdk...

CVE-2026-33203

CVE-2026-33203 affects SiYuan prior to 3.6.2. The SiYuan kernel WebSocket server accepts unauthenticated connections when an explicit auth keepalive parameter is present. After connection, messages are parsed with unchecked type assertions on attacker-controlled JSON, allowing a remote attacker t...

CVE-2026-32874 UltraJSON has a Memory Leak parsing large integers allows DoS

UltraJSON is a fast JSON encoder and decoder written in pure C with bindings for Python 3.7+. Versions 5.4.0 through 5.11.0 contain an accumulating memory leak in JSON parsing large outside of the range -2^63, 2^64 - 1 integers. The leaked memory is a copy of the string form of the integer plus a...

CVE-2026-32874 UltraJSON has a Memory Leak parsing large integers allows DoS

UltraJSON is a fast JSON encoder and decoder written in pure C with bindings for Python 3.7+. Versions 5.4.0 through 5.11.0 contain an accumulating memory leak in JSON parsing large outside of the range -2^63, 2^64 - 1 integers. The leaked memory is a copy of the string form of the integer plus a...

CVE-2026-32874

UltraJSON (ujson) for Python, C-based fast JSON encoder/decoder, is affected in versions 5.4.0–5.11.0 by a memory-leak in parsing large integers that fall outside [-2^63, 2^64-1]. The leak copies the integer’s string form plus an extra NULL byte and occurs regardless of whether the integer parses...

SUSE SLED15 / SLES15 / openSUSE 15 Security Update : jq (SUSE-SU-2026:0931-1)

The remote SUSE Linux SLED15 / SLEDSAP15 / SLES15 / SLESSAP15 / openSUSE 15 host has packages installed that are affected by a vulnerability as referenced in the SUSE-SU-2026:0931-1 advisory. This update for jq fixes the following issue: - CVE-2025-9403: test suite assertion failure in JSON parsi...

Prototype Pollution via parse() in NodeJS flatted

--- Summary The parse function in flatted can use attacker-controlled string values from the parsed JSON as direct array index keys, without validating that they are numeric. Since the internal input buffer is a JavaScript Array, accessing it with the key "\proto\" returns Array.prototype via the...

Interpretation Conflict

Overview Affected versions of this package are vulnerable to Interpretation Conflict in the JSON parsing process. An attacker can manipulate message fields by appending null Unicode characters to keys, causing key collisions and overriding intended values by submitting specially crafted JSON...