TFTP direction confusion
Exact source revision recorded 30 Oct 2026 13:45:33 UTC. It does not establish the source's current position. Latest evidence.
cve-program · CVE-2026-92389
Publishedlibcurl's TFTP state machine fails to validate state transitions against the requested transfer direction, accepting opening server responses for both reads and writes interchangeably. A malicious TFTP server can respond to a download request in a way that forces the client into transmit mode, prompting libcurl to consume and transmit data from the handle's persistent `CURLOPT_READDATA` pointer - including data remaining from unrelated prior operations, such as an HTTP POST request executed on a reused handle.
- Source published
- 20 Oct 2026 20:21:45 UTC
- Source modified
- 30 Oct 2026 12:19:17 UTC
- Observed here
- 30 Oct 2026 13:45:33 UTC
- Source terms
- CVE Program Terms of Use
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