CVE-2026-85534
Last modified
CVE-2026-85534 is a medium-severity vulnerability rated 5.9/10 on the CVSS scale. A flaw was found in libsoup. When a client sends an HTTP/2 request body from a non-pollable input stream, the library can buffer more data than the current flow-control window later allows. EPSS estimates a 0.32% chance of exploitation in the next 30 days.
Description
A flaw was found in libsoup. When a client sends an HTTP/2 request body from a non-pollable input stream, the library can buffer more data than the current flow-control window later allows. A malicious HTTP/2 server can shrink SETTINGS_INITIAL_WINDOW_SIZE while that buffered read is still in progress. The client then copies the full buffer into a smaller DATA callback without a runtime bounds check, which can abort the process or fail the HTTP/2 session.
Metrics
Weakness Enumeration
Affected Software
Source: CNA advisory (CVE.org). NVD analysis pending.
| Vendor | Product | Versions |
|---|---|---|
| Red Hat | Red Hat Enterprise Linux 10 | All versions |
References
Timeline
- Published
- Last Modified
- Status
- Awaiting Analysis
Frequently Asked Questions
What is CVE-2026-85534?
How severe is CVE-2026-85534?
How do I fix CVE-2026-85534?
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2026
- CVE-2026-85529GitLab has remediated an issue in GitLab CE/EE affecting all…5.3
- CVE-2026-8553Use after free in GPU in Google Chrome prior to 148.0.7778.1…3.1
- CVE-2026-85530The GiveWP WordPress plugin before 4.16.8.1 does not consis…8.1
- CVE-2026-85531Improper verification of cryptographic signature vulnerabili…9.8
- CVE-2026-85532Apache WSS4J accepted attacker-controlled derived-key length…7.5
- CVE-2026-85533An authorization flaw in MISP allowed an authenticated user …7.6
- CVE-2026-85538An incorrect authorization vulnerability in MISP allowed aut…8.3
- CVE-2026-8554Type Confusion in ANGLE in Google Chrome on Windows prior to…3.1
- CVE-2026-85540DreamMaker developed by Interinfo has a SQL Injection vulner…8.8
- CVE-2026-85541DreamMaker developed by Interinfo has a Reflected Cross-site…5.4
- CVE-2026-85542IBM Guardium Data Protection 12.2 is affected by a command i…8.8
- CVE-2026-85543Some Wi-Fi series camera products have insufficient permissi…4.3
Are you affected by CVE-2026-85534?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST