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CVE-2026-76151

Out-of-bounds read (buffer over-read) vulnerability in HTTP Cache-Control response header parsing impacts Qt Framework (QtNetwork module) PUBLISHED

Description (CNA)

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 (CNA)

Vendor / productVersions
qt / qtaffected 6.0.0 before 6.8.9; affected 6.9.0 before 6.11.2

CWE

CWE-125, CWE-197

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.