LIKE wildcard injection via unescaped backslashes
Published Aug 30, 2026 · Updated Aug 30, 2026
LIKE wildcard injection in AshSql 0.1.1-rc.10 through 0.7.0 allows attackers to alter string-search matches via crafted terms. In AshSql.Expr, escape_contains, escape_starts_with, and escape_ends_with prefix percent and underscore but fail to escape an input backslash, leaving a following wildcard active in LIKE grammar. Reachability requires a consuming application to pass attacker-controlled search text to contains/2, string_starts_with/2, or string_ends_with/2; results can widen, a negated guard can be bypassed, or a trailing backslash can crash the query.
Summary
What happened
LIKE wildcard injection in AshSql 0.1.1-rc.10 through 0.7.0 allows attackers to alter string-search matches via crafted terms. In AshSql.Expr, escape_contains, escape_starts_with, and escape_ends_with prefix percent and underscore but fail to escape an input backslash, leaving a following wildcard active in LIKE grammar. Reachability requires a consuming application to pass attacker-controlled search text to contains/2, string_starts_with/2, or string_ends_with/2; results can widen, a negated guard can be bypassed, or a trailing backslash can crash the query.
The record
- CVE
- CVE-2026-78691
- Published
- Aug 30, 2026
- Updated
- Aug 30, 2026
- Vendor
- Ash Framework
- Product
- AshSql
- Classifications
- CWE-943
- Attack vector
- Unavailable
- Privileges
- Unavailable
Timeline
How it unfolded
- Aug 30, 2026CVE publishedPublication date reported by the CVE source.
- Aug 30, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=0.1.1-rc.10 <0.7.1
- Affected versionversion=cfc7da474c5be2190fd62664a83a689377a8d512 <d95c55c64b1b42cc2fd30211a4913f3145156cd4
What conditions does exploitation require?
What is affected?
Published CVSS scores
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Attacks
What attackers are doing with it
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Weakness, pattern, technique
Public exploit references
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Technologies
Your stack
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Your stack
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