Vulnerability-Lookup

GHSA-2F3F-M2RP-937P

Vulnerability from github – Published: 2026-10-13 12:32 – Updated: 2026-10-13 12:32

Details

A flaw was found in m17n-lib. An attacker who supplies crafted input to an application processing ISO-2022 encoded text can cause the library to read uninitialized memory from the stack. If the application exposes or returns the decoded output, this flaw can result in unexpected behavior and limited information disclosure.

Severity

2.5 (Low)


                  
                    CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N

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{
  "affected": [],
  "aliases": [
    "CVE-2026-109854"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-457"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-10-13T10:17:15Z",
    "severity": "LOW"
  },
  "details": "A flaw was found in m17n-lib. An attacker who supplies crafted input to an application processing ISO-2022 encoded text can cause the library to read uninitialized memory from the stack. If the application exposes or returns the decoded output, this flaw can result in unexpected behavior and limited information disclosure.",
  "id": "GHSA-2f3f-m2rp-937p",
  "modified": "2026-10-13T12:32:57Z",
  "published": "2026-10-13T12:32:57Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-109854"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/security/cve/CVE-2026-109854"
    },
    {
      "type": "WEB",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2550285"
    },
    {
      "type": "WEB",
      "url": "https://cgit.git.savannah.nongnu.org/cgit/m17n/m17n-lib.git/commit/?id=f3b85087f90189f91c04ba1b62c5f0b879ff2b20"
    },
    {
      "type": "WEB",
      "url": "https://lists.gnu.org/archive/html/m17n-list/2026-10/msg00001.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2026-109854 (GCVE-0-2026-109854)

Vulnerability from cvelistv5 – Published: 2026-10-13 09:16 – Updated: 2026-10-16 21:40

Title

M17n-lib: uninitialized stack read in iso-2022 compound text utf-8 decoding

Summary

Severity

2.5 (Low)


                        
                          CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-10-16 21:40 UTC

CWE

CWE-457 - Use of Uninitialized Variable

Assigner

redhat CNA under the redhat root

CNA scorecard B 82/100 over 1036 records in the last 180 days details

References

4 references

URL	Tags
https://access.redhat.com/security/cve/CVE-2026-109854	vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2550285	issue-trackingx_refsource_REDHAT
https://cgit.git.savannah.nongnu.org/cgit/m17n/m1…
https://lists.gnu.org/archive/html/m17n-list/2026…

Impacted products

5 products

Vendor	Product	Version
Red Hat	Red Hat Enterprise Linux 10	cpe:/o:redhat:enterprise_linux:10
Red Hat	Red Hat Enterprise Linux 6	cpe:/o:redhat:enterprise_linux:6
Red Hat	Red Hat Enterprise Linux 7	cpe:/o:redhat:enterprise_linux:7
Red Hat	Red Hat Enterprise Linux 8	cpe:/o:redhat:enterprise_linux:8
Red Hat	Red Hat Enterprise Linux 9	cpe:/o:redhat:enterprise_linux:9

Date Public

2026-10-13 07:28

Credits

Red Hat would like to thank Chamod Anuradha Denipitiya for reporting this issue.

Show details on NVD website

JSON

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          "product": "Red Hat Enterprise Linux 10",
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    "dateReserved": "2026-10-13T07:19:47.899Z",
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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.

Vulnerability timeline

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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.
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