Vulnerability-Lookup

GHSA-93MW-X5WH-JF8F

Vulnerability from github – Published: 2026-10-06 12:30 – Updated: 2026-10-06 12:30

Details

GNU Aspell prezip-bin contains a heap-based buffer overflow vulnerability in the decompressor in prog/prezip.c. The decompressor does not properly check buffer space, so a crafted compressed file can cause out-of-bounds read and write operations on the heap. An attacker who convinces a user to process a malicious compressed file with prezip-bin can trigger memory corruption, leading to a processs crash.

This issue was fixed in commit 15b188437f9e0192d4ac4472ad66a4e2f62a782f which will be released in version 0.60.8.3.

Severity

1.8 (Low)


                  
                    CVSS:4.0/AV:L/AC:H/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/SC:L/SI:L/SA:N

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{
  "affected": [],
  "aliases": [
    "CVE-2026-75818"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-122"
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    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-10-06T11:17:29Z",
    "severity": "LOW"
  },
  "details": "GNU Aspell prezip-bin contains a heap-based buffer overflow vulnerability in the decompressor in prog/prezip.c. The decompressor does not properly check buffer space, so a crafted compressed file can cause out-of-bounds read and write operations on the heap. An attacker who convinces a user to process a malicious compressed file with prezip-bin can trigger memory corruption, leading to a processs crash.\n\n\n\nThis issue was fixed in commit\u00a015b188437f9e0192d4ac4472ad66a4e2f62a782f which will be\u00a0released in version\u00a00.60.8.3.",
  "id": "GHSA-93mw-x5wh-jf8f",
  "modified": "2026-10-06T12:30:31Z",
  "published": "2026-10-06T12:30:31Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-75818"
    },
    {
      "type": "WEB",
      "url": "https://cert.pl/en/posts/2026/10/CVE-2026-75818"
    },
    {
      "type": "WEB",
      "url": "http://aspell.net"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:L/AC:H/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/SC:L/SI:L/SA:N/E:X/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",
      "type": "CVSS_V4"
    }
  ]
}

CVE-2026-75818 (GCVE-0-2026-75818)

Vulnerability from cvelistv5 – Published: 2026-10-06 10:57 – Updated: 2026-10-06 12:50 X_Open Source

Title

Heap Buffer Overflow in GNU Aspell's prezip utility

Summary

Severity

1.8 (Low)


                        
                          CVSS:4.0/AV:L/AC:H/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/SC:L/SI:L/SA:N

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-10-06 12:50 UTC

CWE

CWE-122 - Heap-based buffer overflow

Assigner

CERT-PL ENISA root Scorecard

References

2 references

URL	Tags
https://cert.pl/en/posts/2026/10/CVE-2026-75818	third-party-advisory
http://aspell.net/	product

Impacted products

1 product

Vendor	Product	Version
GNU	Aspell	Affected: 0 , < 0.60.8.3 (semver) cpe:2.3:a:gnu:aspell::::::::

Credits

Michał Majchrowicz (AFINE Team) Marcin Wyczechowski (AFINE Team)

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JSON

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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.

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.
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GHSA-93MW-X5WH-JF8F

CVE-2026-75818 (GCVE-0-2026-75818)

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