CVE-2026-9546
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2026
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
sending old referer
A vulnerability in libcurl caused the HTTP `Referer:` header to persist even when explicitly cleared. While the documentation states that passing NULL to `CURLOPT_REFERER` suppresses the header, the option failed to clear the internal state. As a result, the previous referrer string was erroneously reused and sent in subsequent requests, potentially leaking sensitive information to unintended servers.
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
curl
- Vendor
- curl
- Product
- curl
- Platforms
- Unknown
- Default status
unaffected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 8.18.0 | affected | semver | 8.20.1 | Unavailable | None listed |
curl
- Vendor
- curl
- Product
- curl
- Platforms
- Unknown
- Default status
unaffected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 2cb868242dc2ac9cd52ee64987ef51d5964a56f9 | affected | git | 862e8a74a84478d82973471b4f49dc2746c1780e | Unavailable | None listed |
curl
- Vendor
- curl
- Product
- curl
- Platforms
- Unknown
- Default status
unaffected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 8.20.0 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 8.19.0 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 8.18.0 | affected | Unavailable | Unavailable | Unavailable | None listed |