CVE-2026-81882 (GCVE-0-2026-81882)
Vulnerability from cvelistv5 – Published: 2026-09-22 15:12 – Updated: 2026-09-22 15:12
VLAI
EPSS
VEX
Title
radare2: Missing string termination causes heap out-of-bounds read in radare2 bplist parser
Summary
radare2 is a UNIX-like reverse engineering framework and command-line toolset. Prior to 6.2.0, radare2's binary property-list Unicode parser was vulnerable because the binary-property-list Unicode parser underallocated an uninitialized UTF-8 destination and did not guarantee NUL termination. The vulnerability is triggered by running the explicit pFB or pFBj commands on untrusted binary property-list data. The json encoder treated the converted data as a nul-terminated c string and could continue reading beyond the allocation. This can cause disclosure of uninitialized or adjacent heap contents in JSON output and possible process termination. This issue is fixed in version 6.2.0.
Severity
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/radareorg/radare2/security/adv… | x_refsource_CONFIRM |
| https://github.com/radareorg/radare2/issues/26227 | x_refsource_MISC |
| https://github.com/radareorg/radare2/commit/38d82… | x_refsource_MISC |
| https://github.com/radareorg/radare2/releases/tag/6.2.0 | x_refsource_MISC |
Impacted products
{
"containers": {
"cna": {
"affected": [
{
"product": "radare2",
"vendor": "radareorg",
"versions": [
{
"status": "affected",
"version": "\u003c 6.2.0"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "radare2 is a UNIX-like reverse engineering framework and command-line toolset. Prior to 6.2.0, radare2\u0027s binary property-list Unicode parser was vulnerable because the binary-property-list Unicode parser underallocated an uninitialized UTF-8 destination and did not guarantee NUL termination. The vulnerability is triggered by running the explicit pFB or pFBj commands on untrusted binary property-list data. The json encoder treated the converted data as a nul-terminated c string and could continue reading beyond the allocation. This can cause disclosure of uninitialized or adjacent heap contents in JSON output and possible process termination. This issue is fixed in version 6.2.0."
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "NONE",
"baseScore": 3.3,
"baseSeverity": "LOW",
"confidentialityImpact": "LOW",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N",
"version": "3.1"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-125",
"description": "CWE-125: Out-of-bounds Read",
"lang": "en",
"type": "CWE"
}
]
},
{
"descriptions": [
{
"cweId": "CWE-170",
"description": "CWE-170: Improper Null Termination",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-09-22T15:12:49.907Z",
"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"shortName": "GitHub_M"
},
"references": [
{
"name": "https://github.com/radareorg/radare2/security/advisories/GHSA-r5cr-f9p6-5pvj",
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://github.com/radareorg/radare2/security/advisories/GHSA-r5cr-f9p6-5pvj"
},
{
"name": "https://github.com/radareorg/radare2/issues/26227",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/radareorg/radare2/issues/26227"
},
{
"name": "https://github.com/radareorg/radare2/commit/38d82a949626dba3783f40508bb66179e631fa45",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/radareorg/radare2/commit/38d82a949626dba3783f40508bb66179e631fa45"
},
{
"name": "https://github.com/radareorg/radare2/releases/tag/6.2.0",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/radareorg/radare2/releases/tag/6.2.0"
}
],
"source": {
"advisory": "GHSA-r5cr-f9p6-5pvj",
"discovery": "UNKNOWN"
},
"title": "radare2: Missing string termination causes heap out-of-bounds read in radare2 bplist parser"
}
},
"cveMetadata": {
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"assignerShortName": "GitHub_M",
"cveId": "CVE-2026-81882",
"datePublished": "2026-09-22T15:12:49.907Z",
"dateReserved": "2026-08-27T17:48:42.122Z",
"dateUpdated": "2026-09-22T15:12:49.907Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"vulnerability-lookup:meta": {
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"date": "2026-09-26",
"epss": "0.00131",
"percentile": "0.02234"
},
"nvd": {
"cve": {
"affected": [
{
"affectedData": [
{
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"vendor": "radareorg",
"versions": [
{
"status": "affected",
"version": "\u003c 6.2.0"
}
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],
"source": "security-advisories@github.com"
}
],
"configurations": [
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"cpeMatch": [
{
"criteria": "cpe:2.3:a:radare:radare2:*:*:*:*:*:*:*:*",
"matchCriteriaId": "89E67591-1BCF-49F0-B047-71FCB5524CDB",
"versionEndExcluding": "6.2.0",
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],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "radare2 is a UNIX-like reverse engineering framework and command-line toolset. Prior to 6.2.0, radare2\u0027s binary property-list Unicode parser was vulnerable because the binary-property-list Unicode parser underallocated an uninitialized UTF-8 destination and did not guarantee NUL termination. The vulnerability is triggered by running the explicit pFB or pFBj commands on untrusted binary property-list data. The json encoder treated the converted data as a nul-terminated c string and could continue reading beyond the allocation. This can cause disclosure of uninitialized or adjacent heap contents in JSON output and possible process termination. This issue is fixed in version 6.2.0."
}
],
"id": "CVE-2026-81882",
"lastModified": "2026-09-25T16:43:26.343",
"metrics": {
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
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"baseSeverity": "LOW",
"confidentialityImpact": "LOW",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N",
"version": "3.1"
},
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"impactScore": 1.4,
"source": "security-advisories@github.com",
"type": "Secondary"
},
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 6.1,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "LOW",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H",
"version": "3.1"
},
"exploitabilityScore": 1.8,
"impactScore": 4.2,
"source": "nvd@nist.gov",
"type": "Primary"
}
]
},
"published": "2026-09-22T16:18:03.053",
"references": [
{
"source": "security-advisories@github.com",
"tags": [
"Patch"
],
"url": "https://github.com/radareorg/radare2/commit/38d82a949626dba3783f40508bb66179e631fa45"
},
{
"source": "security-advisories@github.com",
"tags": [
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"Issue Tracking",
"Mitigation",
"Vendor Advisory"
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"url": "https://github.com/radareorg/radare2/issues/26227"
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{
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"url": "https://github.com/radareorg/radare2/releases/tag/6.2.0"
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}
],
"sourceIdentifier": "security-advisories@github.com",
"vulnStatus": "Analyzed",
"weaknesses": [
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"value": "CWE-125"
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},
"redhat_vex": {
"current_release_date": "2026-09-23T11:11:08+00:00",
"cve": "CVE-2026-81882",
"id": "CVE-2026-81882",
"initial_release_date": "2026-09-22T15:12:49.907000+00:00",
"product_status:known_not_affected": "1",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "radare2: radare2: Information disclosure and denial of service due to heap out-of-bounds read",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-81882.json",
"version": "3"
}
}
}
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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.
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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.
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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.
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