CVE-2026-82736
- Source
- https://cve.org/CVERecord?id=CVE-2026-82736
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-82736.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-82736
- Aliases
-
- EEF-CVE-2026-82736
- GHSA-gg9w-7593-hxg9
- Published
- 2026-09-01T03:21:47.332Z
- Modified
- 2026-09-04T11:45:49.508760890Z
- Severity
-
- 2.1 (Low) CVSS_V4 - CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N CVSS Calculator
- Summary
- Ash.Type.CiString validates length and match constraints before case folding, allowing constraint bypass
- Details
-
Incorrect Behavior Order: Validate Before Canonicalize vulnerability in ash-project ash lets an attacker store a case-insensitive string value that violates its length or match constraints.
Ash.Type.CiString.applyconstraints/2 (lib/ash/type/cistring.ex) validated the maxlength, minlength, and match constraints against the value as submitted, while the type case-folds the string (per its casing) for storage and comparison. Because validation ran before folding, an attacker can submit a value whose folded form breaks a constraint but whose original form passes: for example, against a match pattern requiring uppercase, an uppercase value that is stored lowercased persists a value the pattern rejects. The fix case-folds the value at the start of apply_constraints/2, so the constraints are checked against the form that is actually stored.
This issue affects ash: from 1.29.0-rc0 before 3.32.2.
- Database specific
{ "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/82xxx/CVE-2026-82736.json", "unresolved_ranges": [ { "source": "AFFECTED_FIELD", "extracted_events": [ { "introduced": "f6f5d194bfc7802bd32e48bf2eabd2d97a0109a4" }, { "fixed": "d8320b0127c8ef453679d70e5dd23a9506951d21" } ] } ], "cna_assigner": "EEF", "cwe_ids": [ "CWE-180" ] }- References
-
- https://cna.erlef.org/cves/CVE-2026-82736.html
- https://github.com
- https://osv.dev/vulnerability/EEF-CVE-2026-82736
- https://repo.hex.pm
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/82xxx/CVE-2026-82736.json
- https://github.com/ash-project/ash/security/advisories/GHSA-gg9w-7593-hxg9
- https://nvd.nist.gov/vuln/detail/CVE-2026-82736
- https://github.com/ash-project/ash/commit/d8320b0127c8ef453679d70e5dd23a9506951d21
- https://github.com/ash-project/ash
Affected packages
Git / github.com/ash-project/ash
Affected versions
3.*
3.0.3
3.4.56
v1.*
v1.29.0-rc0
v1.29.0-rc1
v1.30.0
v1.30.1
v1.30.2
v1.31.0
v1.31.1
v1.32.0
v1.32.1
v1.32.2
v1.33.0
v1.34.0
v1.34.1
v1.34.2
v1.34.3
v1.34.5
v1.34.6
v1.34.7
v1.34.8
v1.34.9
v1.35.0
v1.35.1
v1.36.0
v1.36.1
v1.36.10
v1.36.11
v1.36.12
v1.36.13
v1.36.14
v1.36.15
v1.36.16
v1.36.17
v1.36.18
v1.36.19
v1.36.2
v1.36.21
v1.36.22
v1.36.3
v1.36.4
v1.36.5
v1.36.6
v1.36.7
v1.36.8
v1.36.9
v1.37.0
v1.37.2
v1.39.0
v1.39.1
v1.39.2
v1.39.3
v1.39.4
v1.39.5
v1.39.6
v1.39.7
v1.41.0
v1.41.1
v1.41.10
v1.41.11
v1.41.12
v1.41.2
v1.41.3
v1.41.4
v1.41.5
v1.41.6
v1.41.7
v1.41.8
v1.41.9
v1.42.0
v1.43.0
v1.43.1
v1.43.10
v1.43.11
v1.43.12
v1.43.2
v1.43.3
v1.43.4
v1.43.5
v1.43.6
v1.43.7
v1.43.8
v1.43.9
v1.44.0
v1.44.1
v1.44.10
v1.44.11
v1.44.12
v1.44.13
v1.44.2
v1.44.3
v1.44.4
v1.44.5
v1.44.6
v1.44.7
v1.44.8
v1.44.9
v1.45.0-rc0
v1.45.0-rc1
v1.45.0-rc10
v1.45.0-rc11
v1.45.0-rc12
v1.45.0-rc13
v1.45.0-rc14
v1.45.0-rc15
v1.45.0-rc16
v1.45.0-rc17
v1.45.0-rc18
v1.45.0-rc19
v1.45.0-rc2
v1.45.0-rc20
v1.45.0-rc3
v1.45.0-rc4
v1.45.0-rc5
v1.45.0-rc6
v1.45.0-rc7
v1.45.0-rc8
v1.45.0-rc9
v1.46.0
v1.46.1
v1.46.10
v1.46.11
v1.46.12
v1.46.13
v1.46.2
v1.46.3
v1.46.4
v1.46.5
v1.46.6
v1.46.7
v1.46.8
v1.46.9
v1.47.0
v1.47.1
v1.47.10
v1.47.11
v1.47.12
v1.47.2
v1.47.3
v1.47.4
v1.47.5
v1.47.6
v1.47.7
v1.47.8
v1.47.9
v1.48.0-rc.0
v1.48.0-rc.1
v1.48.0-rc.10
v1.48.0-rc.11
v1.48.0-rc.12
v1.48.0-rc.13
v1.48.0-rc.14
v1.48.0-rc.15
v1.48.0-rc.16
v1.48.0-rc.17
v1.48.0-rc.18
v1.48.0-rc.19
v1.48.0-rc.2
v1.48.0-rc.20
v1.48.0-rc.21
v1.48.0-rc.22
v1.48.0-rc.23
v1.48.0-rc.24
v1.48.0-rc.25
v1.48.0-rc.26
v1.48.0-rc.27
v1.48.0-rc.28
v1.48.0-rc.29
v1.48.0-rc.3
v1.48.0-rc.30
v1.48.0-rc.4
v1.48.0-rc.5
v1.48.0-rc.6
v1.48.0-rc.8
v1.48.0-rc.9
v1.49.0
v1.50.0
v1.50.1
v1.50.10
v1.50.11
v1.50.12
v1.50.13
v1.50.14
v1.50.15
v1.50.16
v1.50.17
v1.50.18
v1.50.19
v1.50.2
v1.50.20
v1.50.21
v1.50.3
v1.50.4
v1.50.5
v1.50.6
v1.50.7
v1.50.8
v1.50.9
v1.51.0
v1.51.1
v1.51.2
v1.52.0-rc.0
v1.52.0-rc.1
v1.52.0-rc.10
v1.52.0-rc.11
v1.52.0-rc.12
v1.52.0-rc.13
v1.52.0-rc.14
v1.52.0-rc.15
v1.52.0-rc.16
v1.52.0-rc.17
v1.52.0-rc.18
v1.52.0-rc.19
v1.52.0-rc.2
v1.52.0-rc.20
v1.52.0-rc.21
v1.52.0-rc.22
v1.52.0-rc.3
v1.52.0-rc.4
v1.52.0-rc.5
v1.52.0-rc.6
v1.52.0-rc.7
v1.52.0-rc.8
v1.52.0-rc.9
v1.53.0
v1.53.1
v1.53.2
v1.53.3
v2.*
v2.0.0
v2.0.0-rc.0
v2.0.0-rc.1
v2.0.0-rc.10
v2.0.0-rc.11
v2.0.0-rc.12
v2.0.0-rc.13
v2.0.0-rc.14
v2.0.0-rc.15
v2.0.0-rc.2
v2.0.0-rc.3
v2.0.0-rc.4
v2.0.0-rc.5
v2.0.0-rc.6
v2.0.0-rc.7
v2.0.0-rc.8
v2.0.0-rc.9
v2.1.0
v2.10.0
v2.10.1
v2.10.2
v2.11.0
v2.11.0-rc.0
v2.11.0-rc.1
v2.11.0-rc.2
v2.11.0-rc.3
v2.11.1
v2.11.10
v2.11.11
v2.11.2
v2.11.3
v2.11.4
v2.11.5
v2.11.6
v2.11.7
v2.11.8
v2.11.9
v2.12.0
v2.12.1
v2.13.0
v2.13.1
v2.13.2
v2.13.3
v2.13.4
v2.14.0
v2.14.1
v2.14.10
v2.14.11
v2.14.12
v2.14.13
v2.14.14
v2.14.15
v2.14.16
v2.14.17
v2.14.18
v2.14.19
v2.14.2
v2.14.20
v2.14.21
v2.14.3
v2.14.4
v2.14.5
v2.14.6
v2.14.7
v2.14.8
v2.14.9
v2.15.0
v2.15.1
v2.15.10
v2.15.11
v2.15.12
v2.15.13
v2.15.14
v2.15.15
v2.15.16
v2.15.17
v2.15.18
v2.15.19
v2.15.2
v2.15.20
v2.15.3
v2.15.4
v2.15.5
v2.15.6
v2.15.7
v2.15.8
v2.15.9
v2.16.0
v2.16.1
v2.17.0
v2.17.1
v2.17.10
v2.17.11
v2.17.12
v2.17.13
v2.17.14
v2.17.15
v2.17.16
v2.17.17
v2.17.18
v2.17.19
v2.17.2
v2.17.20
v2.17.21
v2.17.22
v2.17.23
v2.17.24
v2.17.3
v2.17.4
v2.17.5
v2.17.6
v2.17.7
v2.17.8
v2.17.9
v2.18.0
v2.18.1
v2.18.2
v2.19.0
v2.19.1
v2.19.10
v2.19.11
v2.19.12
v2.19.13
v2.19.14
v2.19.2
v2.19.3
v2.19.4
v2.19.5
v2.19.6
v2.19.7
v2.19.8
v2.19.9
v2.2.0
v2.20.0
v2.20.1
v2.20.2
v2.20.3
v2.21.0
v2.21.1
v2.21.2
v2.3.0
v2.4.0
v2.4.1
v2.4.10
v2.4.11
v2.4.12
v2.4.13
v2.4.14
v2.4.15
v2.4.16
v2.4.17
v2.4.18
v2.4.19
v2.4.2
v2.4.20
v2.4.21
v2.4.22
v2.4.23
v2.4.24
v2.4.25
v2.4.26
v2.4.27
v2.4.28
v2.4.29
v2.4.3
v2.4.30
v2.4.4
v2.4.5
v2.4.6
v2.4.7
v2.4.8
v2.4.9
v2.5.0
v2.5.0-rc.0
v2.5.0-rc.1
v2.5.0-rc.2
v2.5.0-rc.3
v2.5.0-rc.4
v2.5.0-rc.5
v2.5.0-rc.6
v2.5.1
v2.5.10
v2.5.11
v2.5.12
v2.5.13
v2.5.14
v2.5.15
v2.5.16
v2.5.2
v2.5.4
v2.5.6
v2.5.7
v2.5.8
v2.5.9
v2.6.0
v2.6.1
v2.6.10
v2.6.11
v2.6.12
v2.6.13
v2.6.14
v2.6.15
v2.6.16
v2.6.17
v2.6.18
v2.6.19
v2.6.2
v2.6.20
v2.6.21
v2.6.22
v2.6.23
v2.6.24
v2.6.25
v2.6.26
v2.6.27
v2.6.29
v2.6.3
v2.6.30
v2.6.31
v2.6.4
v2.6.5
v2.6.6
v2.6.7
v2.6.8
v2.6.9
v2.7.0
v2.7.1
v2.8.0
v2.8.1
v2.9.0
v2.9.1
v2.9.10
v2.9.11
v2.9.12
v2.9.13
v2.9.14
v2.9.15
v2.9.16
v2.9.17
v2.9.18
v2.9.19
v2.9.2
v2.9.20
v2.9.21
v2.9.22
v2.9.23
v2.9.24
v2.9.25
v2.9.26
v2.9.27
v2.9.28
v2.9.29
v2.9.3
v2.9.4
v2.9.5
v2.9.6
v2.9.7
v2.9.8
v2.9.9
v3.*
v3.0.0-rc.0
v3.0.0-rc.1
v3.0.0-rc.10
v3.0.0-rc.11
v3.0.0-rc.12
v3.0.0-rc.13
v3.0.0-rc.14
v3.0.0-rc.15
v3.0.0-rc.16
v3.0.0-rc.17
v3.0.0-rc.18
v3.0.0-rc.19
v3.0.0-rc.2
v3.0.0-rc.20
v3.0.0-rc.21
v3.0.0-rc.22
v3.0.0-rc.23
v3.0.0-rc.24
v3.0.0-rc.25
v3.0.0-rc.26
v3.0.0-rc.27
v3.0.0-rc.29
v3.0.0-rc.3
v3.0.0-rc.30
v3.0.0-rc.31
v3.0.0-rc.32
v3.0.0-rc.33
v3.0.0-rc.34
v3.0.0-rc.35
v3.0.0-rc.36
v3.0.0-rc.37
v3.0.0-rc.38
v3.0.0-rc.4
v3.0.0-rc.40
v3.0.0-rc.41
v3.0.0-rc.42
v3.0.0-rc.43
v3.0.0-rc.44
v3.0.0-rc.45
v3.0.0-rc.46
v3.0.0-rc.5
v3.0.0-rc.6
v3.0.0-rc.7
v3.0.0-rc.8
v3.0.0-rc.9
v3.0.1
v3.0.10
v3.0.11
v3.0.12
v3.0.13
v3.0.14
v3.0.15
v3.0.16
v3.0.2
v3.0.3
v3.0.4
v3.0.5
v3.0.6
v3.0.7
v3.0.8
v3.0.9
v3.1.1
v3.1.5
v3.1.6
v3.1.7
v3.1.8
v3.10.0
v3.10.1
v3.11.0
v3.11.1
v3.11.2
v3.11.3
v3.12.0
v3.13.0
v3.13.1
v3.13.2
v3.14.0
v3.14.1
v3.15.0
v3.16.0
v3.17.0
v3.17.1
v3.18.0
v3.19.0
v3.19.1
v3.19.2
v3.19.3
v3.2.1
v3.2.2
v3.2.3
v3.2.4
v3.2.5
v3.2.6
v3.20.0
v3.21.0
v3.21.1
v3.21.2
v3.21.3
v3.22.0
v3.22.1
v3.22.2
v3.23.0
v3.23.1
v3.24.0
v3.24.1
v3.24.2
v3.24.3
v3.24.4
v3.24.5
v3.24.6
v3.24.7
v3.25.0
v3.25.1
v3.25.2
v3.26.0
v3.27.0
v3.27.1
v3.27.2
v3.27.3
v3.27.4
v3.27.6
v3.27.7
v3.27.8
v3.28.0
v3.29.0
v3.29.1
v3.29.2
v3.29.3
v3.3.0
v3.3.1
v3.3.2
v3.3.3
v3.30.0
v3.30.1
v3.31.0
v3.31.1
v3.31.2
v3.31.3
v3.32.1
v3.4.1
v3.4.10
v3.4.11
v3.4.12
v3.4.13
v3.4.14
v3.4.15
v3.4.16
v3.4.17
v3.4.18
v3.4.19
v3.4.2
v3.4.20
v3.4.21
v3.4.23
v3.4.24
v3.4.25
v3.4.26
v3.4.27
v3.4.28
v3.4.29
v3.4.3
v3.4.30
v3.4.31
v3.4.32
v3.4.33
v3.4.34
v3.4.35
v3.4.36
v3.4.37
v3.4.38
v3.4.39
v3.4.4
v3.4.40
v3.4.41
v3.4.42
v3.4.43
v3.4.44
v3.4.45
v3.4.46
v3.4.47
v3.4.48
v3.4.5
v3.4.50
v3.4.51
v3.4.53
v3.4.54
v3.4.55
v3.4.56
v3.4.57
v3.4.58
v3.4.59
v3.4.6
v3.4.61
v3.4.62
v3.4.63
v3.4.64
v3.4.65
v3.4.66
v3.4.67
v3.4.68
v3.4.69
v3.4.7
v3.4.70
v3.4.71
v3.4.72
v3.4.73
v3.4.8
v3.4.9
v3.5.1
v3.5.10
v3.5.11
v3.5.12
v3.5.13
v3.5.14
v3.5.15
v3.5.16
v3.5.17
v3.5.18
v3.5.19
v3.5.2
v3.5.21
v3.5.22
v3.5.23
v3.5.24
v3.5.25
v3.5.26
v3.5.27
v3.5.28
v3.5.29
v3.5.3
v3.5.30
v3.5.31
v3.5.32
v3.5.33
v3.5.35
v3.5.36
v3.5.37
v3.5.38
v3.5.39
v3.5.4
v3.5.41
v3.5.42
v3.5.43
v3.5.5
v3.5.6
v3.5.7
v3.5.8
v3.6.0
v3.6.1
v3.6.2
v3.6.3
v3.7.0
v3.7.1
v3.7.2
v3.7.3
v3.7.4
v3.7.5
v3.7.6
v3.8.0
v3.9.0