CVE-2026-31943 LibreChat has SSRF protection bypass via IPv4-mapped IPv6 normalization in isPrivateIP

LibreChat is a ChatGPT clone with additional features. Prior to version 0.8.3, isPrivateIP in packages/api/src/auth/domain.ts fails to detect IPv4-mapped IPv6 addresses in their hex-normalized form, allowing any authenticated user to bypass SSRF protection and make the server issue HTTP requests ...

EUVD-2026-16727

A security vulnerability has been detected in letta-ai letta 0.16.4. This vulnerability affects the function convertmessagecreatetomessage of the file letta/helpers/messagehelper.py of the component File URL Handler. Such manipulation of the argument ImageContent leads to server-side request...

4coders-commons (>=0.0.1, <=0.0.2), @11ty/eleventy (0.3.3) +3663 more potentially affected by CVE-2026-33941 via handlebars (>=4.0.0, <=4.7.8)

handlebars NPM version =4.0.0, =0.0.1, =0.1.0, =0.1.0, =0.0.11, =0.0.52, =0.1.0, =0.0.72, =0.1.0, =1.1.1-pr-7-1d68cf28da, =0.0.0-13d458778df8db161111e788ed4207a13a110724, =1.16.0, =1.16.0, =1.16.0, =2.4.4 and more Source cves: CVE-2026-33941 Source advisory: SNYK:JS-HANDLEBARS-15807040...

Handlebars.js has JavaScript Injection via AST Type Confusion when passing an object as dynamic partial

Summary A crafted object placed in the template context can bypass all conditional guards in resolvePartial and cause invokePartial to return undefined. The Handlebars runtime then treats the unresolved partial as a source that needs to be compiled, passing the crafted object to env.compile...

Handlebars.js has JavaScript Injection via AST Type Confusion by tampering @partial-block

Summary The @partial-block special variable is stored in the template data context and is reachable and mutable from within a template via helpers that accept arbitrary objects. When a helper overwrites @partial-block with a crafted Handlebars AST, a subsequent invocation of @partial-block compil...

GHSA-3MFM-83XF-C92R Handlebars.js has JavaScript Injection via AST Type Confusion by tampering @partial-block

Summary The @partial-block special variable is stored in the template data context and is reachable and mutable from within a template via helpers that accept arbitrary objects. When a helper overwrites @partial-block with a crafted Handlebars AST, a subsequent invocation of @partial-block compil...

4coders-commons (>=0.0.1, <=0.0.2), @11ty/eleventy (0.3.3) +3663 more potentially affected by CVE-2026-33938 via handlebars (>=4.0.0, <=4.7.8)

handlebars NPM version =4.0.0, =0.0.1, =0.1.0, =0.1.0, =0.0.11, =0.0.52, =0.1.0, =0.0.72, =0.1.0, =1.1.1-pr-7-1d68cf28da, =0.0.0-13d458778df8db161111e788ed4207a13a110724, =1.16.0, =1.16.0, =1.16.0, =2.4.4 and more Source cves: CVE-2026-33938 Source advisory: SNYK:JS-HANDLEBARS-15803082...

pyLoad: Server-Side Request Forgery via Download Link Submission Enables Cloud Metadata Exfiltration

Summary PyLoad's download engine accepts arbitrary URLs without validation, enabling Server-Side Request Forgery SSRF attacks. An authenticated attacker can exploit this to access internal network services and exfiltrate cloud provider metadata. On DigitalOcean droplets, this exposes sensitive...

EUVD-2026-16886

pyLoad: Server-Side Request Forgery via Download Link Submission Enables Cloud Metadata Exfiltration...

GHSA-M74M-F7CR-432X pyLoad: Server-Side Request Forgery via Download Link Submission Enables Cloud Metadata Exfiltration

Summary PyLoad's download engine accepts arbitrary URLs without validation, enabling Server-Side Request Forgery SSRF attacks. An authenticated attacker can exploit this to access internal network services and exfiltrate cloud provider metadata. On DigitalOcean droplets, this exposes sensitive...

CVE-2026-4964

A security vulnerability has been detected in letta-ai letta 0.16.4. This vulnerability affects the function convertmessagecreatetomessage of the file letta/helpers/messagehelper.py of the component File URL Handler. Such manipulation of the argument ImageContent leads to server-side request...

CVE-2026-33397

The Angular SSR is a server-rise rendering tool for Angular applications. Versions on the 22.x branch prior to 22.0.0-next.2, the 21.x branch prior to 21.2.3, and the 20.x branch prior to 20.3.21 have an Open Redirect vulnerability in @angular/ssr due to an incomplete fix for CVE-2026-27738. Whil...

CVE-2026-33477

FileRise is a self-hosted web-based file manager with multi-file upload, editing, and batch operations. In versiosn 2.3.7 through 3.10.0, the file snippet endpoint /api/file/snippet.php allows an authenticated user with only readown access to a folder to retrieve snippet content from files upload...

CVE-2026-4964 letta-ai letta File URL message_helper.py _convert_message_create_to_message server-side request forgery

A security vulnerability has been detected in letta-ai letta 0.16.4. This vulnerability affects the function convertmessagecreatetomessage of the file letta/helpers/messagehelper.py of the component File URL Handler. Such manipulation of the argument ImageContent leads to server-side request...

CVE-2026-4964 letta-ai letta File URL message_helper.py _convert_message_create_to_message server-side request forgery

A security vulnerability has been detected in letta-ai letta 0.16.4. This vulnerability affects the function convertmessagecreatetomessage of the file letta/helpers/messagehelper.py of the component File URL Handler. Such manipulation of the argument ImageContent leads to server-side request...

CVE-2026-4964 letta-ai letta File URL message_helper.py _convert_message_create_to_message server-side request forgery

A security vulnerability has been detected in letta-ai letta 0.16.4. This vulnerability affects the function convertmessagecreatetomessage of the file letta/helpers/messagehelper.py of the component File URL Handler. Such manipulation of the argument ImageContent leads to server-side request...

CVE-2026-4964

A security vulnerability has been detected in letta-ai letta 0.16.4. This vulnerability affects the function convertmessagecreatetomessage of the file letta/helpers/messagehelper.py of the component File URL Handler. Such manipulation of the argument ImageContent leads to server-side request...

CVE-2026-4964

The vulnerability CVE-2026-4964 affects letta-ai letta 0.16.4, specifically the function _convert_message_create_to_message in letta/helpers/message_helper.py (File URL Handler). It enables server-side request forgery through manipulation of ImageContent, with remote exploitation possible. Public...

Postiz has Multiple SSRF Vectors - Webhooks, RSS Feed, URL Loader

Summary Postiz has multiple SSRF vulnerabilities where user-provided URLs are fetched server-side without any IP validation or SSRF protection. Vulnerable Code 1. Webhook Send Endpoint Most Critical apps/backend/src/api/routes/webhooks.controller.ts lines 58-70: typescript async sendWebhook@Body...

Postiz App has a High-Severity SSRF Vulnerability via Next.js

Impact A successful SSRF attack allows an attacker to: - Bypass firewalls to scan and interact with internal network services/ports. - Access sensitive cloud metadata services e.g., AWS IMDS 169.254.169.254 to potentially leak instance credentials. - Pivot into the internal network environment...