CVE-2026-107928— info leak uploading over WebSockets with GnuTLS
Quick assessment
Affected
curl curl
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
当 curl 使用 GnuTLS 构建时，恶意的 WebSocket 服务器可诱导 curl 发送超出其发送缓冲区范围的内存数据。该问题源于越界读取：在 返回已发送字节数大于实际请求发送的字节数时触发。GnuTLS 在发生阻塞发送后会出现此类行为。
Possible ATT&CK Techniques 1 AI
T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2026-107928
Vulnerability Information
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Vulnerability Title
info leak uploading over WebSockets with GnuTLS
Source: CVE Program / CVE List V5
Vulnerability Description
When curl is built with GnuTLS, a malicious WebSocket server can make curl
send memory past its send buffer. This is due to an out of bounds read
following when `gnutls_record_send()` returns a number of bytes sent **greater
than the number of bytes it was given to send**. GnuTLS does that after a
blocked send.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Affected Products
II. Public POCs for CVE-2026-107928
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
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No public POC found.
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Vendor Advisories for CVE-2026-107928 (2)
Other References for CVE-2026-107928 (1)
Same Patch Batch · curl · 2026-10-20 · 23 CVEs total
| CVE-2026-92391 | curl_mime_free stack overflow by recursion | |
| CVE-2026-107929 | local interface connection reuse mixup | |
| CVE-2026-94266 | password leak in CURLINFO_EFFECTIVE_URL | |
| CVE-2026-94265 | Authorization: Negotiate sent to foreign origin | |
| CVE-2026-86415 | auto client cert connection reuse mixup | |
| CVE-2026-86414 | leaking host credentials to HTTP proxy | |
| CVE-2026-92390 | -J no-clobber guarantee bypassed with 103 early hints | |
| CVE-2026-92387 | never-ending loop via server response omission | |
| CVE-2026-92388 | FTP wildcard write callback mixup | |
| CVE-2026-92386 | server-set cookie aborts cookie jar load | |
| CVE-2026-92389 | TFTP direction confusion | |
| CVE-2026-86409 | stale SigV4 headers sent unintended | |
| CVE-2026-87865 | knownhost callback mismatches key as missing | |
| CVE-2026-87864 | IMAP APPEND plus CRLF conversion command injection | |
| CVE-2026-87863 | HSTS response erases persisted entries | |
| CVE-2026-87866 | wolfSSL public-key pinning bypass | |
| CVE-2026-87861 | cross-origin reuse of a Negotiate connection | |
| CVE-2026-87862 | HSTS cache import drops longer-lived child | |
| CVE-2026-86411 | FTP connection reuse inherits client-certificate | |
| CVE-2026-86412 | server-set cookie erases cookie jar |
Showing top 20 of 23 CVEs. View all on vendor page → →