Service interruption via crafted argument-vector input
Published Aug 28, 2026 · Updated Aug 28, 2026
Denial of service in relibc commit 61f42d allows attackers to interrupt dependent processes via crafted with_argv input. The with_argv function in src/header/unistd/mod.rs accepts the crafted argument-vector input, but public materials do not disclose the failing operation or whether the result is a crash or hang. Exploitation requires control of data passed to with_argv; no network path, privilege requirement, or system-wide consequence is documented.
Summary
What happened
Denial of service in relibc commit 61f42d allows attackers to interrupt dependent processes via crafted with_argv input. The with_argv function in src/header/unistd/mod.rs accepts the crafted argument-vector input, but public materials do not disclose the failing operation or whether the result is a crash or hang. Exploitation requires control of data passed to with_argv; no network path, privilege requirement, or system-wide consequence is documented.
The record
- CVE
- CVE-2026-38638
- Published
- Aug 28, 2026
- Updated
- Aug 28, 2026
- Vendor
- Unknown vendor
- Product
- Unknown product
- Classifications
- T1499.004
- Attack vector
- Unavailable
- Privileges
- Unavailable
Timeline
How it unfolded
- Aug 28, 2026CVE publishedPublication date reported by the CVE source.
- Aug 28, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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What conditions does exploitation require?
What is affected?
Affected products and versions are unavailable in this record.
Published CVSS scores
No CVSS assessment is available in this record.
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Attacks
What attackers are doing with it
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Weakness, pattern, technique
Public exploit references
- CVE-2026-38638 relibc denial-of-service proof of conceptproof of concept · unverified
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Technologies
Your stack
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Your stack
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