PT-2025-48784 · Facebook · Proxygen

Published 2025-12-02 · Updated 2025-12-03 · CVE-2025-55181

Positive Technologies (AI Summary)

CVSS v3.1

5.3

Medium

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Name of the Vulnerable Software and Affected Versions proxygen (affected versions not specified)

Description An excessively large HTTP request or response body—greater than 2^31 bytes—can cause an infinite loop within the proxygen::coro::HTTPQuicCoroSession component. This loop obstructs the event loop and continuously adds data to a std::vector in each iteration, resulting in unrestricted memory consumption and potential process exhaustion.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

DoS

Weakness Enumeration

CWE-834

Related Identifiers

CVE-2025-55181

Affected Products

Proxygen

References · 9

• https://github.com/facebook/proxygen/commit/17689399ef99b7c3d3a8b2b768b1dba1a4b72f8f · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2025-55181 · Security Note
• https://osv.dev/vulnerability/CVE-2025-55181 · Vendor Advisory
• https://facebook.com/security/advisories/cve-2025-55181 · Vendor Advisory
• https://twitter.com/VulmonFeeds/status/1996057587385598208 · Twitter Post
• https://t.me/cveNotify/144575 · Telegram Post
• https://twitter.com/transilienceai/status/1996060011181867516 · Twitter Post
• https://twitter.com/CVEnew/status/1995984898184683841 · Twitter Post
• https://t.me/CVEtracker/38726 · Telegram Post