CVE-2026-78691 (GCVE-0-2026-78691)
Vulnerability from cvelistv5 – Published: 2026-08-30 11:55 – Updated: 2026-08-31 14:57
VLAI
EPSS
VEX
Title
Unescaped backslash allows LIKE wildcard injection in AshSql string search
Summary
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.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-31 14:57 UTC
CWE
- CWE-943 - Improper Neutralization of Special Elements in Data Query Logic
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/ash-project/ash_sql/security/a… | vendor-advisoryrelated |
| https://cna.erlef.org/cves/CVE-2026-78691.html | related |
| https://osv.dev/vulnerability/EEF-CVE-2026-78691 | related |
| https://github.com/ash-project/ash_sql/commit/d95… | patch |
Impacted products
2 products
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| ash-project | ash_sql |
Affected:
0.1.1-rc.10 , < 0.7.1
(semver)
cpe:2.3:a:ash-project:ash_sql:*:*:*:*:*:*:*:* |
||
| ash-project | ash_sql |
Affected:
cfc7da474c5be2190fd62664a83a689377a8d512 , < d95c55c64b1b42cc2fd30211a4913f3145156cd4
(git)
cpe:2.3:a:ash-project:ash_sql:*:*:*:*:*:*:*:* |
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-78691",
"options": [
{
"Exploitation": "poc"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-08-31T14:57:20.454917Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-08-31T14:57:41.423Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"references": [
{
"tags": [
"exploit"
],
"url": "https://github.com/ash-project/ash_sql/security/advisories/GHSA-5jgp-7mhc-6qqh"
}
],
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"collectionURL": "https://repo.hex.pm",
"cpes": [
"cpe:2.3:a:ash-project:ash_sql:*:*:*:*:*:*:*:*"
],
"defaultStatus": "unaffected",
"modules": [
"\u0027Elixir.AshSql.Expr\u0027"
],
"packageName": "ash_sql",
"packageURL": "pkg:hex/ash_sql",
"product": "ash_sql",
"programFiles": [
"lib/expr.ex"
],
"programRoutines": [
{
"name": "\u0027Elixir.AshSql.Expr\u0027:escape_contains/1"
},
{
"name": "\u0027Elixir.AshSql.Expr\u0027:escape_starts_with/1"
},
{
"name": "\u0027Elixir.AshSql.Expr\u0027:escape_ends_with/1"
}
],
"repo": "https://github.com/ash-project/ash_sql",
"vendor": "ash-project",
"versions": [
{
"lessThan": "0.7.1",
"status": "affected",
"version": "0.1.1-rc.10",
"versionType": "semver"
}
]
},
{
"collectionURL": "https://github.com",
"cpes": [
"cpe:2.3:a:ash-project:ash_sql:*:*:*:*:*:*:*:*"
],
"defaultStatus": "unaffected",
"modules": [
"\u0027Elixir.AshSql.Expr\u0027"
],
"packageName": "ash-project/ash_sql",
"packageURL": "pkg:github/ash-project/ash_sql",
"product": "ash_sql",
"programFiles": [
"lib/expr.ex"
],
"programRoutines": [
{
"name": "\u0027Elixir.AshSql.Expr\u0027:escape_contains/1"
},
{
"name": "\u0027Elixir.AshSql.Expr\u0027:escape_starts_with/1"
},
{
"name": "\u0027Elixir.AshSql.Expr\u0027:escape_ends_with/1"
}
],
"repo": "https://github.com/ash-project/ash_sql",
"vendor": "ash-project",
"versions": [
{
"lessThan": "d95c55c64b1b42cc2fd30211a4913f3145156cd4",
"status": "affected",
"version": "cfc7da474c5be2190fd62664a83a689377a8d512",
"versionType": "git"
}
]
}
],
"configurations": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "\u003cp\u003eAn application must pass untrusted input as the search term of \u003ccode\u003econtains/2\u003c/code\u003e, \u003ccode\u003estring_starts_with/2\u003c/code\u003e, or \u003ccode\u003estring_ends_with/2\u003c/code\u003e (for example a user-controlled substring search).\u003c/p\u003e"
},
{
"base64": false,
"type": "text/markdown",
"value": "An application must pass untrusted input as the search term of `contains/2`, `string_starts_with/2`, or `string_ends_with/2` (for example a user-controlled substring search)."
}
],
"value": "An application must pass untrusted input as the search term of contains/2, string_starts_with/2, or string_ends_with/2 (for example a user-controlled substring search)."
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:ash-project:ash_sql:*:*:*:*:*:*:*:*",
"versionEndExcluding": "0.7.1",
"versionStartIncluding": "0.1.1-rc.10",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
],
"operator": "AND"
}
],
"credits": [
{
"lang": "en",
"type": "finder",
"value": "Peter Ullrich"
},
{
"lang": "en",
"type": "reporter",
"value": "Peter Ullrich"
},
{
"lang": "en",
"type": "remediation developer",
"value": "Zach Daniel / Ash Project"
},
{
"lang": "en",
"type": "coordinator",
"value": "Jonatan M\u00e4nnchen / EEF"
}
],
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "\u003cp\u003eImproper Neutralization of Special Elements in Data Query Logic vulnerability in ash-project ash_sql allows a user who supplies a search term to \u003ccode\u003econtains/2\u003c/code\u003e, \u003ccode\u003estring_starts_with/2\u003c/code\u003e, or \u003ccode\u003estring_ends_with/2\u003c/code\u003e to inject live SQL \u003ccode\u003eLIKE\u003c/code\u003e wildcards, turning a literal substring search into an attacker-controlled pattern match.\u003c/p\u003e\n\u003cp\u003eThe escape helpers in \u003ccode\u003eAshSql.Expr\u003c/code\u003e prefix \u003ccode\u003e%\u003c/code\u003e and \u003ccode\u003e_\u003c/code\u003e with a backslash but never escape a backslash already present in the input. Because backslash is the default \u003ccode\u003eLIKE\u003c/code\u003e escape character, the escaping defeats itself: the input \u003ccode\u003e\\%\u003c/code\u003e becomes the pattern fragment \u003ccode\u003e\\\\%\u003c/code\u003e, where \u003ccode\u003e\\\\\u003c/code\u003e is a literal backslash and the attacker\u0027s \u003ccode\u003e%\u003c/code\u003e 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 \u003ccode\u003econtains(...)\u003c/code\u003e guard, or crash the query with a trailing lone backslash.\u003c/p\u003e\n\u003cp\u003eThis issue affects ash_sql: from 0.1.1-rc.10 before 0.7.1.\u003c/p\u003e"
},
{
"base64": false,
"type": "text/markdown",
"value": "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.\n\nThe 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\u0027s `%` 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.\n\nThis issue affects ash_sql: from 0.1.1-rc.10 before 0.7.1."
}
],
"value": "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.\n\nThe 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\u0027s % 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.\n\nThis issue affects ash_sql: from 0.1.1-rc.10 before 0.7.1."
}
],
"impacts": [
{
"capecId": "CAPEC-116",
"descriptions": [
{
"lang": "en",
"value": "CAPEC-116 Excavation"
}
]
}
],
"metrics": [
{
"cvssV4_0": {
"Automatable": "NOT_DEFINED",
"Recovery": "NOT_DEFINED",
"Safety": "NOT_DEFINED",
"attackComplexity": "LOW",
"attackRequirements": "PRESENT",
"attackVector": "LOCAL",
"baseScore": 2.1,
"baseSeverity": "LOW",
"privilegesRequired": "NONE",
"providerUrgency": "NOT_DEFINED",
"subAvailabilityImpact": "NONE",
"subConfidentialityImpact": "NONE",
"subIntegrityImpact": "NONE",
"userInteraction": "NONE",
"valueDensity": "NOT_DEFINED",
"vectorString": "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",
"version": "4.0",
"vulnAvailabilityImpact": "NONE",
"vulnConfidentialityImpact": "LOW",
"vulnIntegrityImpact": "NONE",
"vulnerabilityResponseEffort": "NOT_DEFINED"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en",
"value": "GENERAL"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-943",
"description": "CWE-943 Improper Neutralization of Special Elements in Data Query Logic",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-08-30T11:55:20.331Z",
"orgId": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
"shortName": "EEF"
},
"references": [
{
"tags": [
"vendor-advisory",
"related"
],
"url": "https://github.com/ash-project/ash_sql/security/advisories/GHSA-5jgp-7mhc-6qqh"
},
{
"tags": [
"related"
],
"url": "https://cna.erlef.org/cves/CVE-2026-78691.html"
},
{
"tags": [
"related"
],
"url": "https://osv.dev/vulnerability/EEF-CVE-2026-78691"
},
{
"tags": [
"patch"
],
"url": "https://github.com/ash-project/ash_sql/commit/d95c55c64b1b42cc2fd30211a4913f3145156cd4"
}
],
"source": {
"discovery": "EXTERNAL"
},
"title": "Unescaped backslash allows LIKE wildcard injection in AshSql string search"
}
},
"cveMetadata": {
"assignerOrgId": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
"assignerShortName": "EEF",
"cveId": "CVE-2026-78691",
"datePublished": "2026-08-30T11:55:20.331Z",
"dateReserved": "2026-08-30T05:45:01.818Z",
"dateUpdated": "2026-08-31T14:57:41.423Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"vulnerability-lookup:meta": {
"epss": {
"cve": "CVE-2026-78691",
"date": "2026-09-26",
"epss": "0.00197",
"percentile": "0.08431"
},
"nvd": {
"cve": {
"affected": [
{
"affectedData": [
{
"collectionURL": "https://repo.hex.pm",
"cpes": [
"cpe:2.3:a:ash-project:ash_sql:*:*:*:*:*:*:*:*"
],
"defaultStatus": "unaffected",
"modules": [
"\u0027Elixir.AshSql.Expr\u0027"
],
"packageName": "ash_sql",
"packageURL": "pkg:hex/ash_sql",
"product": "ash_sql",
"programFiles": [
"lib/expr.ex"
],
"programRoutines": [
{
"name": "\u0027Elixir.AshSql.Expr\u0027:escape_contains/1"
},
{
"name": "\u0027Elixir.AshSql.Expr\u0027:escape_starts_with/1"
},
{
"name": "\u0027Elixir.AshSql.Expr\u0027:escape_ends_with/1"
}
],
"repo": "https://github.com/ash-project/ash_sql",
"vendor": "ash-project",
"versions": [
{
"lessThan": "0.7.1",
"status": "affected",
"version": "0.1.1-rc.10",
"versionType": "semver"
}
]
},
{
"collectionURL": "https://github.com",
"cpes": [
"cpe:2.3:a:ash-project:ash_sql:*:*:*:*:*:*:*:*"
],
"defaultStatus": "unaffected",
"modules": [
"\u0027Elixir.AshSql.Expr\u0027"
],
"packageName": "ash-project/ash_sql",
"packageURL": "pkg:github/ash-project/ash_sql",
"product": "ash_sql",
"programFiles": [
"lib/expr.ex"
],
"programRoutines": [
{
"name": "\u0027Elixir.AshSql.Expr\u0027:escape_contains/1"
},
{
"name": "\u0027Elixir.AshSql.Expr\u0027:escape_starts_with/1"
},
{
"name": "\u0027Elixir.AshSql.Expr\u0027:escape_ends_with/1"
}
],
"repo": "https://github.com/ash-project/ash_sql",
"vendor": "ash-project",
"versions": [
{
"lessThan": "d95c55c64b1b42cc2fd30211a4913f3145156cd4",
"status": "affected",
"version": "cfc7da474c5be2190fd62664a83a689377a8d512",
"versionType": "git"
}
]
}
],
"source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db"
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "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.\n\nThe 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\u0027s % 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.\n\nThis issue affects ash_sql: from 0.1.1-rc.10 before 0.7.1."
}
],
"id": "CVE-2026-78691",
"lastModified": "2026-09-01T21:15:00.147",
"metrics": {
"cvssMetricV40": [
{
"cvssData": {
"Automatable": "NOT_DEFINED",
"Recovery": "NOT_DEFINED",
"Safety": "NOT_DEFINED",
"attackComplexity": "LOW",
"attackRequirements": "PRESENT",
"attackVector": "LOCAL",
"availabilityRequirement": "NOT_DEFINED",
"baseScore": 2.1,
"baseSeverity": "LOW",
"confidentialityRequirement": "NOT_DEFINED",
"exploitMaturity": "NOT_DEFINED",
"integrityRequirement": "NOT_DEFINED",
"modifiedAttackComplexity": "NOT_DEFINED",
"modifiedAttackRequirements": "NOT_DEFINED",
"modifiedAttackVector": "NOT_DEFINED",
"modifiedPrivilegesRequired": "NOT_DEFINED",
"modifiedSubAvailabilityImpact": "NOT_DEFINED",
"modifiedSubConfidentialityImpact": "NOT_DEFINED",
"modifiedSubIntegrityImpact": "NOT_DEFINED",
"modifiedUserInteraction": "NOT_DEFINED",
"modifiedVulnAvailabilityImpact": "NOT_DEFINED",
"modifiedVulnConfidentialityImpact": "NOT_DEFINED",
"modifiedVulnIntegrityImpact": "NOT_DEFINED",
"privilegesRequired": "NONE",
"providerUrgency": "NOT_DEFINED",
"subAvailabilityImpact": "NONE",
"subConfidentialityImpact": "NONE",
"subIntegrityImpact": "NONE",
"userInteraction": "NONE",
"valueDensity": "NOT_DEFINED",
"vectorString": "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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
"version": "4.0",
"vulnAvailabilityImpact": "NONE",
"vulnConfidentialityImpact": "LOW",
"vulnIntegrityImpact": "NONE",
"vulnerabilityResponseEffort": "NOT_DEFINED"
},
"source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
"type": "Secondary"
}
],
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2026-78691",
"options": [
{
"exploitation": "poc"
},
{
"automatable": "no"
},
{
"technicalImpact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-08-31T14:57:20.454917Z",
"version": "2.0.3"
}
}
]
},
"published": "2026-08-30T12:17:18.550",
"references": [
{
"source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
"url": "https://cna.erlef.org/cves/CVE-2026-78691.html"
},
{
"source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
"url": "https://github.com/ash-project/ash_sql/commit/d95c55c64b1b42cc2fd30211a4913f3145156cd4"
},
{
"source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
"url": "https://github.com/ash-project/ash_sql/security/advisories/GHSA-5jgp-7mhc-6qqh"
},
{
"source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
"url": "https://osv.dev/vulnerability/EEF-CVE-2026-78691"
},
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"url": "https://github.com/ash-project/ash_sql/security/advisories/GHSA-5jgp-7mhc-6qqh"
}
],
"sourceIdentifier": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
"vulnStatus": "Deferred",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-943"
}
],
"source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
"type": "Secondary"
}
]
}
},
"vulnrichment": {
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-78691",
"options": [
{
"Exploitation": "poc"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-08-31T14:57:20.454917Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-08-31T14:57:37.891Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"references": [
{
"tags": [
"exploit"
],
"url": "https://github.com/ash-project/ash_sql/security/advisories/GHSA-5jgp-7mhc-6qqh"
}
],
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"collectionURL": "https://repo.hex.pm",
"cpes": [
"cpe:2.3:a:ash-project:ash_sql:*:*:*:*:*:*:*:*"
],
"defaultStatus": "unaffected",
"modules": [
"\u0027Elixir.AshSql.Expr\u0027"
],
"packageName": "ash_sql",
"packageURL": "pkg:hex/ash_sql",
"product": "ash_sql",
"programFiles": [
"lib/expr.ex"
],
"programRoutines": [
{
"name": "\u0027Elixir.AshSql.Expr\u0027:escape_contains/1"
},
{
"name": "\u0027Elixir.AshSql.Expr\u0027:escape_starts_with/1"
},
{
"name": "\u0027Elixir.AshSql.Expr\u0027:escape_ends_with/1"
}
],
"repo": "https://github.com/ash-project/ash_sql",
"vendor": "ash-project",
"versions": [
{
"lessThan": "0.7.1",
"status": "affected",
"version": "0.1.1-rc.10",
"versionType": "semver"
}
]
},
{
"collectionURL": "https://github.com",
"cpes": [
"cpe:2.3:a:ash-project:ash_sql:*:*:*:*:*:*:*:*"
],
"defaultStatus": "unaffected",
"modules": [
"\u0027Elixir.AshSql.Expr\u0027"
],
"packageName": "ash-project/ash_sql",
"packageURL": "pkg:github/ash-project/ash_sql",
"product": "ash_sql",
"programFiles": [
"lib/expr.ex"
],
"programRoutines": [
{
"name": "\u0027Elixir.AshSql.Expr\u0027:escape_contains/1"
},
{
"name": "\u0027Elixir.AshSql.Expr\u0027:escape_starts_with/1"
},
{
"name": "\u0027Elixir.AshSql.Expr\u0027:escape_ends_with/1"
}
],
"repo": "https://github.com/ash-project/ash_sql",
"vendor": "ash-project",
"versions": [
{
"lessThan": "d95c55c64b1b42cc2fd30211a4913f3145156cd4",
"status": "affected",
"version": "cfc7da474c5be2190fd62664a83a689377a8d512",
"versionType": "git"
}
]
}
],
"configurations": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "\u003cp\u003eAn application must pass untrusted input as the search term of \u003ccode\u003econtains/2\u003c/code\u003e, \u003ccode\u003estring_starts_with/2\u003c/code\u003e, or \u003ccode\u003estring_ends_with/2\u003c/code\u003e (for example a user-controlled substring search).\u003c/p\u003e"
},
{
"base64": false,
"type": "text/markdown",
"value": "An application must pass untrusted input as the search term of `contains/2`, `string_starts_with/2`, or `string_ends_with/2` (for example a user-controlled substring search)."
}
],
"value": "An application must pass untrusted input as the search term of contains/2, string_starts_with/2, or string_ends_with/2 (for example a user-controlled substring search)."
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:ash-project:ash_sql:*:*:*:*:*:*:*:*",
"versionEndExcluding": "0.7.1",
"versionStartIncluding": "0.1.1-rc.10",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
],
"operator": "AND"
}
],
"credits": [
{
"lang": "en",
"type": "finder",
"value": "Peter Ullrich"
},
{
"lang": "en",
"type": "reporter",
"value": "Peter Ullrich"
},
{
"lang": "en",
"type": "remediation developer",
"value": "Zach Daniel / Ash Project"
},
{
"lang": "en",
"type": "coordinator",
"value": "Jonatan M\u00e4nnchen / EEF"
}
],
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "\u003cp\u003eImproper Neutralization of Special Elements in Data Query Logic vulnerability in ash-project ash_sql allows a user who supplies a search term to \u003ccode\u003econtains/2\u003c/code\u003e, \u003ccode\u003estring_starts_with/2\u003c/code\u003e, or \u003ccode\u003estring_ends_with/2\u003c/code\u003e to inject live SQL \u003ccode\u003eLIKE\u003c/code\u003e wildcards, turning a literal substring search into an attacker-controlled pattern match.\u003c/p\u003e\n\u003cp\u003eThe escape helpers in \u003ccode\u003eAshSql.Expr\u003c/code\u003e prefix \u003ccode\u003e%\u003c/code\u003e and \u003ccode\u003e_\u003c/code\u003e with a backslash but never escape a backslash already present in the input. Because backslash is the default \u003ccode\u003eLIKE\u003c/code\u003e escape character, the escaping defeats itself: the input \u003ccode\u003e\\%\u003c/code\u003e becomes the pattern fragment \u003ccode\u003e\\\\%\u003c/code\u003e, where \u003ccode\u003e\\\\\u003c/code\u003e is a literal backslash and the attacker\u0027s \u003ccode\u003e%\u003c/code\u003e 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 \u003ccode\u003econtains(...)\u003c/code\u003e guard, or crash the query with a trailing lone backslash.\u003c/p\u003e\n\u003cp\u003eThis issue affects ash_sql: from 0.1.1-rc.10 before 0.7.1.\u003c/p\u003e"
},
{
"base64": false,
"type": "text/markdown",
"value": "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.\n\nThe 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\u0027s `%` 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.\n\nThis issue affects ash_sql: from 0.1.1-rc.10 before 0.7.1."
}
],
"value": "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.\n\nThe 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\u0027s % 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.\n\nThis issue affects ash_sql: from 0.1.1-rc.10 before 0.7.1."
}
],
"impacts": [
{
"capecId": "CAPEC-116",
"descriptions": [
{
"lang": "en",
"value": "CAPEC-116 Excavation"
}
]
}
],
"metrics": [
{
"cvssV4_0": {
"Automatable": "NOT_DEFINED",
"Recovery": "NOT_DEFINED",
"Safety": "NOT_DEFINED",
"attackComplexity": "LOW",
"attackRequirements": "PRESENT",
"attackVector": "LOCAL",
"baseScore": 2.1,
"baseSeverity": "LOW",
"privilegesRequired": "NONE",
"providerUrgency": "NOT_DEFINED",
"subAvailabilityImpact": "NONE",
"subConfidentialityImpact": "NONE",
"subIntegrityImpact": "NONE",
"userInteraction": "NONE",
"valueDensity": "NOT_DEFINED",
"vectorString": "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",
"version": "4.0",
"vulnAvailabilityImpact": "NONE",
"vulnConfidentialityImpact": "LOW",
"vulnIntegrityImpact": "NONE",
"vulnerabilityResponseEffort": "NOT_DEFINED"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en",
"value": "GENERAL"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-943",
"description": "CWE-943 Improper Neutralization of Special Elements in Data Query Logic",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-08-30T11:55:20.331Z",
"orgId": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
"shortName": "EEF"
},
"references": [
{
"tags": [
"vendor-advisory",
"related"
],
"url": "https://github.com/ash-project/ash_sql/security/advisories/GHSA-5jgp-7mhc-6qqh"
},
{
"tags": [
"related"
],
"url": "https://cna.erlef.org/cves/CVE-2026-78691.html"
},
{
"tags": [
"related"
],
"url": "https://osv.dev/vulnerability/EEF-CVE-2026-78691"
},
{
"tags": [
"patch"
],
"url": "https://github.com/ash-project/ash_sql/commit/d95c55c64b1b42cc2fd30211a4913f3145156cd4"
}
],
"source": {
"discovery": "EXTERNAL"
},
"title": "Unescaped backslash allows LIKE wildcard injection in AshSql string search"
}
},
"cveMetadata": {
"assignerOrgId": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
"assignerShortName": "EEF",
"cveId": "CVE-2026-78691",
"datePublished": "2026-08-30T11:55:20.331Z",
"dateReserved": "2026-08-30T05:45:01.818Z",
"dateUpdated": "2026-08-31T14:57:41.423Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
}
}
Loading…
Loading…
Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
Loading…
Loading…
The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
Loading…
Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
Loading…