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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.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:410aaa663a8a9e02262c20312996fe0b6d251ecad3ab73a0d842a9ca34112342
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0

Affected products and versions

1 source assertion
{"product":"bulk_extractor","vendor":"simsong","versions":[{"status":"affected","version":">= 1.4, <= 2.1.1"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:041249ff3f4ddd423643c81c622e39eaa7036262e3dbf07031c77dbe8fa4988c · sha256:c678f9face57d607… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":5.5,"baseSeverity":"MEDIUM","privilegesRequired":"NONE","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"NONE","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","version":"4.0","vulnAvailabilityImpact":"LOW","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"NONE"},"metric_type":"cvssV4_0"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:041249ff3f4ddd423643c81c622e39eaa7036262e3dbf07031c77dbe8fa4988c · sha256:c678f9face57d607… · /containers/cna/metrics/0/cvssV4_0

CWE assertions

1 source assertion
{"cweId":"CWE-122","description":"CWE-122: Heap-based Buffer Overflow","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:041249ff3f4ddd423643c81c622e39eaa7036262e3dbf07031c77dbe8fa4988c · sha256:c678f9face57d607… · /containers/cna/problemTypes/0/descriptions/0

Source references

2 source assertions
{"name":"https://github.com/simsong/bulk_extractor/security/advisories/GHSA-rh8m-9xrx-q64q","tags":["x_refsource_CONFIRM"],"url":"https://github.com/simsong/bulk_extractor/security/advisories/GHSA-rh8m-9xrx-q64q"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:041249ff3f4ddd423643c81c622e39eaa7036262e3dbf07031c77dbe8fa4988c · sha256:c678f9face57d607… · /containers/cna/references/0
{"tags":["exploit"],"url":"https://github.com/simsong/bulk_extractor/security/advisories/GHSA-rh8m-9xrx-q64q"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:041249ff3f4ddd423643c81c622e39eaa7036262e3dbf07031c77dbe8fa4988c · sha256:c678f9face57d607… · /containers/adp/0/references/0

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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