CVE-2026-82752
- Source
- https://cve.org/CVERecord?id=CVE-2026-82752
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-82752.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-82752
- Aliases
-
- EEF-CVE-2026-82752
- GHSA-cwjv-574p-59f6
- Published
- 2026-09-05T17:16:16Z
- Modified
- 2026-09-10T03:30:43Z
- Severity
-
- 5.9 (Medium) CVSS_V4 - CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N CVSS Calculator
- Summary
- Ash string length constraints count graphemes, so a combining-mark string of any size passes max_length
- Details
-
Improper Validation of Specified Quantity in Input vulnerability in ash-project ash allows an attacker to store a value of arbitrary size in an attribute whose length constraint should bound it.
Ash measures string length with Elixir's String.length/1, which counts Unicode graphemes, in the max_length and min_length constraints of Ash.Type.String (apply_constraints/2 in lib/ash/type/string.ex), in Ash.Resource.Validation.StringLength, and in the string_length expression function. A grapheme carries an unbounded number of combining marks, so a base character followed by a million combining acute accents is one grapheme and megabytes of data, and satisfies max_length: 2. Where the data layer imposes no independent limit (ETS, Mnesia, or a Postgres text column) the whole value is persisted, so an attacker can write an entire request body into an attribute declared with a small maximum and grow storage without bound.
The counting unit also disagrees with the storage layer, which counts codepoints rather than graphemes, so a value accepted by the constraint can still be rejected or truncated by the column. A Postgres varchar(n) column bounds the value itself and is not exposed.
This issue affects ash: from 0.10.0 before 3.33.0.
- Database specific
{ "cna_assigner": "EEF", "cwe_ids": [ "CWE-1284" ], "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/82xxx/CVE-2026-82752.json", "unresolved_ranges": [ { "extracted_events": [ { "introduced": "0.10.0" }, { "fixed": "3.33.0" }, { "introduced": "05848d5f4affe60fddd812222a18ada080c0813b" }, { "fixed": "*" } ], "source": "AFFECTED_FIELD" }, { "extracted_events": [ { "introduced": "0.10.0" }, { "fixed": "3.33.0" } ], "source": "CPE_FIELD" }, { "extracted_events": [ { "introduced": "0.10.0" }, { "fixed": "3.33.0" } ], "source": "DESCRIPTION" } ] }- References
-
- https://cna.erlef.org/cves/CVE-2026-82752.html
- https://github.com
- https://osv.dev/vulnerability/EEF-CVE-2026-82752
- https://repo.hex.pm
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/82xxx/CVE-2026-82752.json
- https://github.com/ash-project/ash/security/advisories/GHSA-cwjv-574p-59f6
- https://nvd.nist.gov/vuln/detail/CVE-2026-82752
- https://github.com/ash-project/ash/commit/a64cab49b8886503e6b7c7b211d83c475aac48ca
- https://github.com/ash-project/ash/commit/cdbf4c4da6bda5f6f139078f01a64320b595216d
- https://github.com/ash-project/ash
Affected packages
Git / github.com/ash-project/ash
Affected versions
3.*
3.0.3
3.4.56
v0.*
v0.1.1
v0.1.3
v0.1.4
v0.1.5
v0.1.6
v0.1.7
v0.1.9
v0.10.0
v0.11.0
v0.12.0
v0.13.0
v0.13.1
v0.2.0
v0.3.0
v0.4.0
v0.5.0
v0.5.1
v0.5.2
v0.6.0
v0.6.1
v0.6.2
v0.6.3
v0.6.4
v0.6.5
v0.7.0
v0.8.0
v0.9.0
v0.9.1
v1.*
v1.0.0
v1.0.1
v1.0.2
v1.0.3
v1.1.0
v1.1.1
v1.1.2
v1.1.3
v1.10.0
v1.11.0
v1.11.1
v1.12.0
v1.13.0
v1.13.1
v1.13.2
v1.13.3
v1.13.4
v1.14.0
v1.15.0
v1.15.1
v1.16.0
v1.16.1
v1.16.2
v1.17.0
v1.17.1
v1.18.0
v1.18.1
v1.19.0
v1.19.1
v1.2.0
v1.2.1
v1.20.0
v1.20.1
v1.22.0
v1.22.1
v1.23.0
v1.23.1
v1.23.2
v1.23.3
v1.24.0
v1.24.1
v1.24.2
v1.25.0
v1.25.1
v1.25.2
v1.25.3
v1.25.4
v1.25.5
v1.25.6
v1.25.7
v1.25.8
v1.26.0
v1.26.1
v1.26.10
v1.26.11
v1.26.12
v1.26.13
v1.26.2
v1.26.3
v1.26.4
v1.26.5
v1.26.6
v1.26.7
v1.26.8
v1.26.9
v1.27.0
v1.27.1
v1.28.0
v1.28.1
v1.29.0-rc0
v1.29.0-rc1
v1.3.0
v1.3.1
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
v1.4.0
v1.4.1
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
v1.5.0
v1.5.1
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
v1.6.0
v1.6.1
v1.6.2
v1.6.3
v1.6.4
v1.6.5
v1.6.6
v1.6.7
v1.6.8
v1.7.0
v1.8.0
v1.9.0
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
v3.32.2
v3.32.3
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