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CVE-2026-92390high7.5

-J no-clobber guarantee bypassed with 103 early hints

Impact

When invoked with --remote-header-name (-J), curl fails to preserve its documented anti-clobbering protection if an intermediate 103 Early Hints response precedes the final HTTP response, or if an ETag header is processed before Content-Disposition under --etag-save. This flaw allows an HTTP(S) server to overwrite an existing local file specified in the Content-Disposition header despite the presence of the -J non-overwrite constraint.

Source excerpt · curl

Affected packages

This source has no supported package-version data for matching. You can read the advisory here, but this record alone cannot power a dependency check.

Affected products

Vendor version evidence. Product records are separate from automatic dependency matching.

curl · curl

curl

135 ranges
curl version evidence

Compare with this publisher’s ranges. This does not inspect your installation.

affected

8.22.0 → through 8.22.0

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8.21.0 → through 8.21.0

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unaffected

unknown

Other versions: unaffected

Original source description

When invoked with --remote-header-name (-J), curl fails to preserve its documented anti-clobbering protection if an intermediate 103 Early Hints response precedes the final HTTP response, or if an ETag header is processed before Content-Disposition under --etag-save. This flaw allows an HTTP(S) server to overwrite an existing local file specified in the Content-Disposition header despite the presence of the -J non-overwrite constraint.

Inside the record

Evidence available

Package identity · not supplied
Version evidence
Remediation guidance · not supplied
Weakness classification
Additional publishers

Describes the evidence in this view, not whether the product is safe.

Original records

CVE-2026-92390

View the latest unmodified CVE JSON from the official source. It may be newer than this imported page.

cve.new JSON →

Underlying weaknesses

The source’s classification of what caused the vulnerability.

CWE-73 ↗

CWE-73 External Control of File Name or Path

CISA-ADP

Related →
Contributing organizations · 2
curl

Assigning organization

2026-10-20
CISA-ADP

Additional data publisher

2026-10-30

What changed

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References

3 sources
curl.se/docs/CVE-2026-92390.json
Security advisorycurl
curl.se/docs/CVE-2026-92390.html
Security advisorycurl
hackerone.com/reports/4023192
exploitcurl · CISA-ADP