CVE-2026-78691
- Source
- https://cve.org/CVERecord?id=CVE-2026-78691
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-78691.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-78691
- Aliases
-
- EEF-CVE-2026-78691
- GHSA-5jgp-7mhc-6qqh
- Published
- 2026-08-30T11:55:20Z
- Modified
- 2026-09-03T03:30:51Z
- Severity
-
- 2.1 (Low) CVSS_V4 - CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N CVSS Calculator
- Summary
- Unescaped backslash allows LIKE wildcard injection in AshSql string search
- Details
-
Improper Neutralization of Special Elements in Data Query Logic vulnerability in ash-project ash_sql allows a user who supplies a search term to contains/2, string_starts_with/2, or string_ends_with/2 to inject live SQL LIKE wildcards, turning a literal substring search into an attacker-controlled pattern match.
The escape helpers in AshSql.Expr prefix % and _ with a backslash but never escape a backslash already present in the input. Because backslash is the default LIKE escape character, the escaping defeats itself: the input % becomes the pattern fragment \%, where \ is a literal backslash and the attacker's % remains a live wildcard. The search value stays parameterized, so this is confined to the LIKE pattern grammar rather than full SQL. An attacker can widen matches to probe values, slip past a negated contains(...) guard, or crash the query with a trailing lone backslash.
This issue affects ash_sql: from 0.1.1-rc.10 before 0.7.1.
- Database specific
{ "cna_assigner": "EEF", "cwe_ids": [ "CWE-943" ], "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/78xxx/CVE-2026-78691.json", "unresolved_ranges": [ { "extracted_events": [ { "introduced": "cfc7da474c5be2190fd62664a83a689377a8d512" }, { "fixed": "d95c55c64b1b42cc2fd30211a4913f3145156cd4" } ], "source": "AFFECTED_FIELD" } ] }- References
-
- https://cna.erlef.org/cves/CVE-2026-78691.html
- https://github.com
- https://osv.dev/vulnerability/EEF-CVE-2026-78691
- https://repo.hex.pm
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/78xxx/CVE-2026-78691.json
- https://github.com/ash-project/ash_sql/security/advisories/GHSA-5jgp-7mhc-6qqh
- https://nvd.nist.gov/vuln/detail/CVE-2026-78691
- https://github.com/ash-project/ash_sql/commit/d95c55c64b1b42cc2fd30211a4913f3145156cd4
- https://github.com/ash-project/ash_sql