CVE-2026-81883
- Source
- https://cve.org/CVERecord?id=CVE-2026-81883
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-81883.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-81883
- Aliases
-
- GHSA-96m5-hvwp-674c
- Downstream
- Related
- Published
- 2026-09-22T15:14:47Z
- Modified
- 2026-10-01T18:26:47Z
- Severity
-
- 3.3 (Low) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L CVSS Calculator
- Summary
- radare2: Out-of-bounds Read at the end of string in the LUA 5.3 bytecode
- Details
-
radare2 is a UNIX-like reverse engineering framework and command-line toolset. Prior to 6.2.0, radare2's Lua 5.3 bytecode function parser was vulnerable because the Lua 5.3 bytecode function parser read fixed function-metadata fields immediately after a function-name string without checking the remaining buffer length. The vulnerability is triggered by opening or inspecting a crafted Lua 5.3 bytecode file whose function-name string ends at the input-buffer boundary. The parser read two integers and three one-byte fields beyond the allocated input buffer. This can cause invalid parser results or process termination; no attacker-observable memory disclosure has been demonstrated. This issue is fixed in version 6.2.0.
- Database specific
{ "cna_assigner": "GitHub_M", "cwe_ids": [ "CWE-125" ], "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/81xxx/CVE-2026-81883.json" }- References
-
- https://github.com/radareorg/radare2/releases/tag/6.2.0
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/81xxx/CVE-2026-81883.json
- https://github.com/radareorg/radare2/security/advisories/GHSA-96m5-hvwp-674c
- https://nvd.nist.gov/vuln/detail/CVE-2026-81883
- https://github.com/radareorg/radare2/issues/26228
- https://github.com/radareorg/radare2/commit/26c2eac360033458e9d266e5e30667d1f8d642e3
Affected packages
Git / github.com/radareorg/radare2
Affected ranges
- Type
- GIT
- Repo
- https://github.com/radareorg/radare2
- Events
-
Introduced0 Unknown introduced commit / All previous commits are affectedFixedFixed
- Database specific
-
Show details
{ "cpe": "cpe:2.3:a:radare:radare2:*:*:*:*:*:*:*:*", "extracted_events": [ { "introduced": "0" }, { "fixed": "6.2.0" } ], "source": [ "CPE_RANGE", "REFERENCES" ] }
Affected versions
0.*
0.10.0
0.10.1
0.10.2
0.10.3
0.10.4
0.10.4-termux4
0.10.5
0.10.6
0.8.6
0.8.8
0.9
0.9.2
0.9.4
0.9.6
0.9.7
0.9.8
0.9.8-rc1
0.9.8-rc2
0.9.8-rc3
0.9.8-rc4
0.9.9
1.*
1.0
1.0.0
1.0.1
1.0.2
1.1.0
1.2.0
1.2.0-git
1.3.0
1.3.0-git
1.4.0
1.5.0
1.6.0
2.*
2.0.0
2.0.1
2.1.0
2.2.0
2.4.0
2.5.0
2.6.0
2.6.9
2.7.0
2.8.0
2.9.0
3.*
3.0.0
3.0.1
3.1.0
3.1.1
3.1.2
3.1.3
3.2.0
3.2.1
3.3.0
3.4.0
3.4.1
3.5.0
3.5.1
3.6.0
3.7.0
3.7.1
3.8.0
3.9.0
4.*
4.0.0
4.1.0
4.1.1
4.2.0
4.2.1
4.3.0
4.3.1
4.4.0
4.5.1
5.*
5.0.0
5.1.0
5.1.1
5.2.0
5.2.1
5.3.0
5.3.1
5.4.0
5.4.0-git
5.4.2
5.5.0
5.5.2
5.5.4
5.6.0
5.6.2
5.6.4
5.6.6
5.6.8
5.7.0
5.7.2
5.7.4
5.7.6
5.7.8
5.8.0
5.8.2
5.8.4
5.8.6
5.8.8
5.9.0
5.9.2
5.9.4
5.9.6
5.9.8
6.*
6.0.0
6.0.2
6.0.4
6.0.6
6.0.7
6.0.8
6.1.0
6.1.2
6.1.4
6.1.6
6.1.8
Other
Continuous-Windows
continuous
radare2-windows-nightly
termux
wip
release-5.*
release-5.0.0
Database specific
source
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-81883.json"
vanir_signatures
[
{
"deprecated": false,
"digest": {
"function_hash": "88813128786502877480995414348781267443",
"length": 2685
},
"id": "CVE-2026-81883-219bc786",
"signature_type": "Function",
"signature_version": "v1",
"source": "https://github.com/radareorg/radare2/commit/26c2eac360033458e9d266e5e30667d1f8d642e3",
"target": {
"file": "libr/bin/format/lua/lua.c",
"function": "lua53parseFunction"
}
},
{
"deprecated": false,
"digest": {
"line_hashes": [
"97281731534988022195761506325820041129",
"140060395005531248709477678621622325818",
"62959465794815688041136842110098149805",
"231183345651814163341419737057238732559",
"192389528011561717209268003354426092216",
"260661482793239044655224904127795230054",
"270715067591010131606712070159926213473",
"27567618119958805393762998454053934827",
"176561817106027157751524138588692811124",
"304149718349571851964985182712710429663",
"178619029799886523076829665371130677280",
"231183345651814163341419737057238732559",
"225942904298752586441781191334244115206",
"236493813222167216913636342678684300887",
"82363497290657257578190770290382409004",
"84183812391959972098891284107225975560",
"154749837732141788212620510855110568430",
"157015736461577161155744872917161487710",
"231183345651814163341419737057238732559",
"185602589844584869329473121125131954719",
"140537124039914541700397857928529337679",
"336639376182564242353932543828328628498",
"335029874234159221934744697391962460284",
"6414103377676371644918401372246687358",
"33522283271567754928102736799666675195",
"231183345651814163341419737057238732559",
"288029404338626140819327551746194557768",
"66848983366596859733397264906749018052",
"24139697413545650703802642757272299252",
"221545293187243653579787666816612143811",
"338321884345777618720418594571476864366",
"66645056954162476463792707813430013862",
"231183345651814163341419737057238732559",
"44854276324870498599675265765746053394",
"100612716329139136481206801634891668722",
"53681145297720595341982176037450039034",
"107540521382467662356297096602359812652",
"236004924389456760078368607771313172500",
"231183345651814163341419737057238732559",
"36650638506775718766036598341830141840",
"308010621248350100418277529564109310850",
"97156973595993161770697621786399137605",
"281529209788473691321358283905624021324"
],
"threshold": 0.9
},
"id": "CVE-2026-81883-e8c41b78",
"signature_type": "Line",
"signature_version": "v1",
"source": "https://github.com/radareorg/radare2/commit/26c2eac360033458e9d266e5e30667d1f8d642e3",
"target": {
"file": "libr/bin/format/lua/lua.c"
}
}
]
vanir_signatures_modified
"2026-09-30T08:06:07Z"