CVE-2026-84918
Monobank payment API - Moderately critical - Access bypass - SA-CONTRIB-2026-130
Improper Verification of Cryptographic Signature vulnerability in Drupal Monobank payment API allows Signature Spoof. This issue affects Monobank payment API versions: from 0.0.0 to 1.0.3.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- High
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- None
- Integrity
- Low
- Availability
- None
Exploit likelihood
What each source reports
CVE List Score used
Monobank payment API - Moderately critical - Access bypass - SA-CONTRIB-2026-130
Improper Verification of Cryptographic Signature vulnerability in Drupal Monobank payment API allows Signature Spoof. This issue affects Monobank payment API versions: from 0.0.0 to 1.0.3.
- Record
CVE-2026-84918- CVSS 3.1
- 3.7 Low
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N - Weakness
- CWE-347
- Updated
- 2026-11-02
EUVDEUVD-2026-107869
Improper Verification of Cryptographic Signature vulnerability in Drupal Monobank payment API allows Signature Spoof. This issue affects Monobank payment API versions: from 0.0.0 to 1.0.3.
- Record
EUVD-2026-107869- CVSS 3.1
- 3.7 Low
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-jmjm-hhfc-mfxc
Improper Verification of Cryptographic Signature vulnerability in Drupal Monobank payment API...
Improper Verification of Cryptographic Signature vulnerability in Drupal Monobank payment API allows Signature Spoof. This issue affects Monobank payment API versions: from 0.0.0 to 1.0.3.
- Record
GHSA-jmjm-hhfc-mfxc- CVSS 3.1
- 3.7 Low
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N - Weakness
- CWE-347
- Updated
- 2026-11-02
NVD
Improper Verification of Cryptographic Signature vulnerability in Drupal Monobank payment API allows Signature Spoof. This issue affects Monobank payment API versions: from 0.0.0 to 1.0.3.
- Record
CVE-2026-84918- CVSS 3.1
- 3.7 Low
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N - Weakness
- CWE-347
- Updated
- 2026-11-02
OSV
Monobank payment API - Moderately critical - Access bypass - SA-CONTRIB-2026-130
Improper Verification of Cryptographic Signature vulnerability in Drupal Monobank payment API allows Signature Spoof. This issue affects Monobank payment API versions: from 0.0.0 to 1.0.3.
- Record
CVE-2026-84918- CVSS 3.1
- 3.7 Low
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N - Weakness
- CWE-347
- Updated
- 2026-11-02
OSVDRUPAL-CONTRIB-2026-130No score
The Monobank payment API module provides integration with Monobank acquiring payments.
The module did not verify the Monobank webhook signature before processing payment status callbacks.
- Record
DRUPAL-CONTRIB-2026-130- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
drupal/monobankPackagist:https://packages.drupal.org/8 | before 1.0.3 | 1.0.3 |
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2026-84918 is a low vulnerability (CVSS 3.7) in Drupal Monobank Payment Api, published September 2, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.16%, the 4th percentile. Fixed in drupal/monobank 1.0.3.