CVE-2026-24857

`bulk_extractor` is a digital forensics exploitation tool. Starting in version 1.4, `bulk_extractor`’s embedded unrar code has a heap‑buffer‑overflow in the RAR PPM LZ decoding path. A crafted RAR inside a disk image causes an out‑of‑bounds write in `Unpack::CopyString`, leading to a crash under ASAN (and likely a crash or memory corruption in production builds). There's potential for using this for RCE. As of time of publication, no known patches are available.

CVSS

No CVSS.

References

Link	Resource
https://github.com/simsong/bulk_extractor/security/advisories/GHSA-rh8m-9xrx-q64q
https://github.com/simsong/bulk_extractor/security/advisories/GHSA-rh8m-9xrx-q64q

Configurations

No configuration.

History

29 Jan 2026, 18:16

Type	Values Removed	Values Added
References	~~() https://github.com/simsong/bulk_extractor/security/advisories/GHSA-rh8m-9xrx-q64q -~~	() https://github.com/simsong/bulk_extractor/security/advisories/GHSA-rh8m-9xrx-q64q -

28 Jan 2026, 22:15

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-01-28 22:15

Updated : 2026-01-29 18:16

NVD link : CVE-2026-24857

Mitre link : CVE-2026-24857

CVE.ORG link : CVE-2026-24857

JSON object : View

Products Affected

No product.

CWE

CWE-122

Heap-based Buffer Overflow

{"id": "CVE-2026-24857", "cveTags": [], "metrics": {"cvssMetricV40": [{"type": "Secondary", "source": "security-advisories@github.com", "cvssData": {"Safety": "NOT_DEFINED", "version": "4.0", "Recovery": "NOT_DEFINED", "baseScore": 5.5, "Automatable": "NOT_DEFINED", "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P/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", "exploitMaturity": "PROOF_OF_CONCEPT", "providerUrgency": "NOT_DEFINED", "userInteraction": "NONE", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "NONE", "subIntegrityImpact": "NONE", "vulnIntegrityImpact": "NONE", "integrityRequirement": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "vulnAvailabilityImpact": "LOW", "availabilityRequirement": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "subConfidentialityImpact": "NONE", "vulnConfidentialityImpact": "NONE", "confidentialityRequirement": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "vulnerabilityResponseEffort": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED"}}]}, "published": "2026-01-28T22:15:56.350", "references": [{"url": "https://github.com/simsong/bulk_extractor/security/advisories/GHSA-rh8m-9xrx-q64q", "source": "security-advisories@github.com"}, {"url": "https://github.com/simsong/bulk_extractor/security/advisories/GHSA-rh8m-9xrx-q64q", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"}], "vulnStatus": "Awaiting Analysis", "weaknesses": [{"type": "Secondary", "source": "security-advisories@github.com", "description": [{"lang": "en", "value": "CWE-122"}]}], "descriptions": [{"lang": "en", "value": "`bulk_extractor` is a digital forensics exploitation tool. Starting in version 1.4, `bulk_extractor`\u2019s embedded unrar code has a heap\u2011buffer\u2011overflow in the RAR PPM LZ decoding path. A crafted RAR inside a disk image causes an out\u2011of\u2011bounds write in `Unpack::CopyString`, leading to a crash under ASAN (and likely a crash or memory corruption in production builds). There's potential for using this for RCE. As of time of publication, no known patches are available."}], "lastModified": "2026-01-29T18:16:17.293", "sourceIdentifier": "security-advisories@github.com"}