Vulnerability-Lookup

GHSA-J2FF-7Q97-H87P

Vulnerability from github – Published: 2026-06-30 15:30 – Updated: 2026-06-30 15:30

Details

KTM System e-BOK does not implement any limit or timeout on consecutive login attempts, allowing an attacker to perform unlimited authentication requests. This lack of rate‑limiting enables efficient brute‑force attacks against user accounts. When combined with vulnerability CVE-2026-35097, where passwords are restricted to a six‑digit numeric format, this becomes a critical issue, as such passwords can be brute‑forced in a relatively short time.

This issue was fixed in the patch published in June 2026.

Severity

6.9 (Medium)


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

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JSON

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{
  "affected": [],
  "aliases": [
    "CVE-2026-35098"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-307"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-06-30T14:16:26Z",
    "severity": "MODERATE"
  },
  "details": "KTM System e-BOK does not implement any limit or timeout on consecutive login attempts, allowing an attacker to perform unlimited authentication requests. This lack of rate\u2011limiting enables efficient brute\u2011force attacks against user accounts. When combined with vulnerability CVE-2026-35097, where passwords are restricted to a six\u2011digit numeric format, this becomes a critical issue, as such passwords can be brute\u2011forced in a relatively short time.\n\nThis issue was fixed in the patch published in June 2026.",
  "id": "GHSA-j2ff-7q97-h87p",
  "modified": "2026-06-30T15:30:46Z",
  "published": "2026-06-30T15:30:46Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-35098"
    },
    {
      "type": "WEB",
      "url": "https://cert.pl/posts/2026/06/CVE-2026-35095"
    },
    {
      "type": "WEB",
      "url": "https://ktmsystem.pl/internetowe-biuro-obslugi-klienta"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/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-2026-35098 (GCVE-0-2026-35098)

Vulnerability from cvelistv5 – Published: 2026-06-30 13:37 – Updated: 2026-06-30 14:40

Title

Improper Restriction of Excessive Authentication Attempts in KTM System e-BOK

Summary

Severity

6.9 (Medium)


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

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator (v2.0.3)

CWE

CWE-307 - Improper Restriction of Excessive Authentication Attempts

Assigner

CERT-PL

References

2 references

URL	Tags
https://cert.pl/posts/2026/06/CVE-2026-35095/	third-party-advisory
https://ktmsystem.pl/internetowe-biuro-obslugi-klienta/	product

Impacted products

1 product

Vendor	Product	Version
KTM System	e-BOK	Affected: 0 , < 06.2026 (custom)

Credits

Jacek Korta

Show details on NVD website

JSON

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                "id": "CVE-2026-35098",
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                  },
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                "timestamp": "2026-06-30T14:40:46.505812Z",
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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.

Detection rules are retrieved from Rulezet.

Action not permitted

GHSA-J2FF-7Q97-H87P

CVE-2026-35098 (GCVE-0-2026-35098)

Tags

Sightings

Nomenclature