CVE-2026-76151
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/AU:N/R:A
Summary
Out-of-bounds read (buffer over-read) in the HTTP Cache-Control response header parsing in the QtNetwork module in Qt Group Qt 6.0.0 through 6.8.8, and 6.9.0 through 6.11.1, allows remote attackers to cause a denial of service (application crash) via an excessively large Cache-Control header value returned by an untrusted or compromised HTTP server to an application using QNetworkAccessManager. Only the client side of the connection is affected and 32-bit builds are not affected; the out-of-bounds access is read-only, with no information disclosure and no code execution.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| qt | qt | 6.0.0 < 6.8.9 | affected |
| qt | qt | 6.9.0 < 6.11.2 | affected |
Weaknesses
- CWE-125: CWE-125 Out-of-bounds Read
- CWE-197: CWE-197 Numeric Truncation Error
ADP Enrichment
CISA ADP Vulnrichment
- SSVC:
- Exploitation: none
- Automatable: no
- Technical Impact: partial
References
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