Vendor
Facebook vulnerabilities
Updated . Rebuilt every hour.
Junglewise Threat Intelligence has tracked 10 vulnerabilities in Facebook: 0 in the last 7 days and 4 in the last 90 days, 0 of them critical and 0 exploited in the wild. The most recent, Hydra legacy target blacklist permits unsafe PyYAML loading, was published on 27 October 2026. 1 vulnerability in the last four weeks, down 67% on the four before (3). 2 technologies have a page of their own.
- Last 7 days
- 0
- Last 90 days
- 4
- Critical, all time
- 0
- Exploited in the wild
- 0
About Facebook
Technology company that develops social media and software platforms.
Facebook technologies
Latest Facebook vulnerabilities
- Hydra legacy target blacklist permits unsafe PyYAML loadinghighCVSS 7.8
- CVE-2026-106442: Facebook Hydra instantiate target bypass vulnerabilityhighCVSS 7.8EPSS 0.2%
- CVE-2026-106439: Hydra instantiate execution policy bypass via mutable module-level statehighCVSS 4EPSS 0.5%
- CVE-2026-84895: Facebook Proxygen use-after-free in QuicWtSession closeSessioninfo
- CVE-2026-66705: Facebook for WordPress unauthenticated cross-site scriptinghighCVSS 7.1EPSS 0.3%
- CVE-2026-44909: Facebook Proxygen denial of service via slow-consumer memory exhaustionhighCVSS 7.5
- CVE-2026-23870: Facebook React Denial of Service in React Server ComponentshighCVSS 7.5EPSS 1.5%
- CVE-2025-55181: Sending an HTTP request/response body with greater than 2^31 bytes triggers an infinite loop in…mediumCVSS 5.3EPSS 0.3%
- React Cross-Site Scripting in createElementinfo
- CVE-2018-6341: Facebook react-dom cross-site scripting in server renderinglowCVSS 3EPSS 3.4%
Most severe Facebook vulnerabilities
Exploited in the wild first, then by severity and CVSS score.
- CVE-2026-106442: Facebook Hydra instantiate target bypass vulnerabilityhighCVSS 7.8EPSS 0.2%
- Hydra legacy target blacklist permits unsafe PyYAML loadinghighCVSS 7.8
- CVE-2026-23870: Facebook React Denial of Service in React Server ComponentshighCVSS 7.5EPSS 1.5%
- CVE-2026-44909: Facebook Proxygen denial of service via slow-consumer memory exhaustionhighCVSS 7.5
- CVE-2026-66705: Facebook for WordPress unauthenticated cross-site scriptinghighCVSS 7.1EPSS 0.3%
- CVE-2026-106439: Hydra instantiate execution policy bypass via mutable module-level statehighCVSS 4EPSS 0.5%
- CVE-2025-55181: Sending an HTTP request/response body with greater than 2^31 bytes triggers an infinite loop in…mediumCVSS 5.3EPSS 0.3%
- CVE-2018-6341: Facebook react-dom cross-site scripting in server renderinglowCVSS 3EPSS 3.4%
- CVE-2026-84895: Facebook Proxygen use-after-free in QuicWtSession closeSessioninfo
- React Cross-Site Scripting in createElementinfo
Vulnerabilities per week
1 vulnerability in the last four weeks, down 67% on the four before (3). The last 13 weeks, by the week each vulnerability was published.
| Week of | Bar | Vulns | Critical |
|---|---|---|---|
| 17 Aug 2026 | 0 | 0 | |
| 24 Aug 2026 | 0 | 0 | |
| 31 Aug 2026 | 0 | 0 | |
| 7 Sep 2026 | 0 | 0 | |
| 14 Sep 2026 | 0 | 0 | |
| 21 Sep 2026 | 0 | 0 | |
| 28 Sep 2026 | 1 | 0 | |
| 5 Oct 2026 | 2 | 0 | |
| 12 Oct 2026 | 0 | 0 | |
| 19 Oct 2026 | 0 | 0 | |
| 26 Oct 2026 | 1 | 0 | |
| 2 Nov 2026 | 0 | 0 | |
| 9 Nov 2026 | 0 | 0 |
Embed a badge
A live badge for a README, a status page or an internal wiki: how many Facebook vulnerabilities were published in the last 7 days and how many of them are critical, refreshed hourly.
[](https://junglewise.ai/threats/vendors/facebook)<a href="https://junglewise.ai/threats/vendors/facebook"><img src="https://junglewise.ai/threats/vendors/facebook/badge.svg" alt="Facebook vulnerabilities" /></a>How this is built
Junglewise Threat Intelligence collects vulnerabilities from NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories, and matches each one to the technologies and vendors it affects. Dates are the date a vulnerability was published, in UTC.
The pages are rebuilt from the database every hour. Frozen weekly and monthly reports never change once published, so they can be cited.
Use this data
The same data is at https://junglewise.ai/threats/vendors/facebook.json, and this page as text at https://junglewise.ai/threats/vendors/facebook.md, for scripts and language models. It is free to reuse under CC BY 4.0 with a link back to this page.
Cite as: Junglewise Threat Intelligence, "Facebook vulnerabilities", https://junglewise.ai/threats/vendors/facebook, 9 November 2026.