CVSS 4.0
0.6 lowCVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:N/VI:L/VA:N/SC:N/SI:L/SA:N/E:U/R:U/RE:L/U:GreenCVE-2026-116337 Uncontrolled resource consumption vulnerability in HTTP response handling of Qt Network impacts Qt Framework
Low (0.6) in qt qt framework. EPSS 0.3% estimated probability of exploitation activity in the next 30 days.
On this page
Uncontrolled resource consumption vulnerability in the Qt Framework HTTP response handling functionality of the Qt Network module.
Severity
- EPSS
- 0.3% estimated probability of exploitation activity in the next 30 days; 22nd percentile. Scored 2026-11-13. A forecast for this CVE across the internet, not for your own systems.
- CISA's assessment (SSVC)
- Exploitation: none · Automatable: no · Technical impact: partial, assessed 2026-11-09. From CISA's Vulnrichment in the CVE List: whether it is exploited, whether exploiting it can be automated, and how much control it gives.
- CWE
- CWE-770 Allocation of Resources Without Limits or Throttling
- Published
- Modified
- Assigned by
- Qt (CNA)
- NVD analysis
- Awaiting analysis
- Record from
- the NVD, synced
Ask an AI about this CVE
Show the prompt
Explain CVE-2026-116337 for an engineer deciding whether to act. Use https://cve.bz/api/public/cves/CVE-2026-116337?via=ask-ai-copy and https://cve.bz/cve/CVE-2026-116337?via=ask-ai-copy as the source of truth: what is affected and which versions fix it, whether it is in CISA KEV, public exploits, and its EPSS (an internet-wide 30-day estimate of exploitation activity, not a forecast for my systems). If they give no fixed versions, use the CVE record https://cveawg.mitre.org/api/cve/CVE-2026-116337 or the vendor advisory, not third-party mirrors. Tell me how to check whether I am affected and how to verify a fix. Cite the sources and say where they are uncertain.Opens a third-party assistant; its answer is its own, not cve.bz's. The prompt holds only this CVE's id and public links.
Badge for a README or a site
An image that stays current: it is drawn from the data each time it is fetched (a host that proxies images, as GitHub does, may show its copy for a while). Markdown:
[](https://cve.bz/cve/CVE-2026-116337)
HTML:
<a href="https://cve.bz/cve/CVE-2026-116337"><img src="https://cve.bz/cve/badge/CVE-2026-116337.svg" alt="CVE-2026-116337"></a>
Affected
- qt:qt framework
Versions
From the CNA's record in the CVE List.
| Product | Affected |
|---|---|
| Qt Framework | from 4.5.0 before 6.8.10 |
| Qt Framework | from 6.9.0 before 6.12.1 |
Fix and patched versions
- Red Hat: fixed package versions per release
Linux distributions
| Distribution | Release | Package | Fixed in | Advisory |
|---|---|---|---|---|
| Ubuntu | 22.04:LTS, 24.04:LTS | qt6-base | no fix listed | UBUNTU-CVE-2026-116337 |
| Ubuntu | 26.04:LTS, 26.10 | qt6-base, qtbase-opensource-src | no fix listed | UBUNTU-CVE-2026-116337 |
| Ubuntu | Pro:16.04:LTS, Pro:18.04:LTS, Pro:20.04:LTS and 2 more | qtbase-opensource-src | no fix listed | UBUNTU-CVE-2026-116337 |
| Red Hat | hummingbird:1 | qt5-qtbase, qt5-qtbase-gui, qt5-qtbase-tds and 9 more | 0:5.15.18-6.3.hum1 | RHSA-2026:99589 |
| Red Hat | hummingbird:1 | qt6-qtbase, qt6-qtbase-gui, qt6-qtbase-odbc and 8 more | 0:6.12.0-1.2.hum1 | RHSA-2026:99591 |
| Azure Linux | 3 | qtbase | no fix listed | AZL-113251 |
From the distributions' data via OSV.dev: Ubuntu Security Notices © Canonical Ltd., CC BY-SA 4.0; Red Hat Security Data © Red Hat, Inc., CC BY 4.0; Microsoft's Azure Linux vulnerability data, MIT. Modified: reformatted and linked to CVE records. Credits. On the distributions' own pages: Ubuntu · Red Hat.
Red Hat
Red Hat rates this Low.
An uncontrolled resource consumption flaw in the Qt Network module allows a remote attacker or malicious HTTP server to exhaust system resources and cause a denial of service by delivering a specially crafted HTTP response.
Ensure client applications only connect to trusted HTTP endpoints and restrict maximum allowed response headers and body buffer sizes in application network settings where supported.
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 10 | qt6-qtbase | Fix deferred | |
| Red Hat Enterprise Linux 6 | qt | Fix deferred | |
| Red Hat Enterprise Linux 6 | qt3 | Not affected | |
| Red Hat Enterprise Linux 7 | qt | Fix deferred | |
| Red Hat Enterprise Linux 7 | qt3 | Not affected | |
| Red Hat Enterprise Linux 7 | qt5-qtbase | Fix deferred | |
| Red Hat Enterprise Linux 8 | qt5-qtbase | Fix deferred | |
| Red Hat Enterprise Linux 9 | qt5-qtbase | Fix deferred | |
| Red Hat Hardened Images | qt5 | Affected | |
| Red Hat Hardened Images | qt5-qtbase | Fix deferred | |
| Red Hat Hardened Images | qt6 | Affected | |
| Red Hat Hardened Images | qt6-qtbase | Fix deferred |
Contains Red Hat Security Data © Red Hat, Inc., licensed under CC BY 4.0. Source: https://access.redhat.com/security/data. Modified: reformatted. Red Hat's page for CVE-2026-116337.
Attack patterns (CAPEC)
The attack patterns MITRE's CAPEC relates to this record's weaknesses, as MITRE names them. Credits. More on the page of CWE-770 (20).