CVE-2026-107257
Actstream - Critical - Access bypass - SA-CONTRIB-2026-198
Incorrect Authorization vulnerability in Drupal Actstream allows Forceful Browsing. This issue affects Actstream versions: from 0.0.0 to 2.0.1, from 2.1.0 to 2.1.1.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- Low
- Integrity
- Low
- Availability
- None
Exploit likelihood
What each source reports
CVE List Score used
Actstream - Critical - Access bypass - SA-CONTRIB-2026-198
Incorrect Authorization vulnerability in Drupal Actstream allows Forceful Browsing. This issue affects Actstream versions: from 0.0.0 to 2.0.1, from 2.1.0 to 2.1.1.
- Record
CVE-2026-107257- CVSS 3.1
- 6.5 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N - Weakness
- CWE-863
- Updated
- 2026-11-02
EUVDEUVD-2026-113577
Incorrect Authorization vulnerability in Drupal Actstream allows Forceful Browsing. This issue affects Actstream versions: from 0.0.0 to 2.0.1, from 2.1.0 to 2.1.1.
- Record
EUVD-2026-113577- CVSS 3.1
- 6.5 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-49qr-j2v8-5wg8
Incorrect Authorization vulnerability in Drupal Actstream allows Forceful Browsing. This issue...
Incorrect Authorization vulnerability in Drupal Actstream allows Forceful Browsing. This issue affects Actstream versions: from 0.0.0 to 2.0.1, from 2.1.0 to 2.1.1.
- Record
GHSA-49qr-j2v8-5wg8- CVSS 3.1
- 6.5 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N - Weakness
- CWE-863
- Updated
- 2026-11-02
NVD
Incorrect Authorization vulnerability in Drupal Actstream allows Forceful Browsing. This issue affects Actstream versions: from 0.0.0 to 2.0.1, from 2.1.0 to 2.1.1.
- Record
CVE-2026-107257- CVSS 3.1
- 6.5 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N - Weakness
- CWE-863
- Updated
- 2026-11-02
OSV
Actstream - Critical - Access bypass - SA-CONTRIB-2026-198
Incorrect Authorization vulnerability in Drupal Actstream allows Forceful Browsing. This issue affects Actstream versions: from 0.0.0 to 2.0.1, from 2.1.0 to 2.1.1.
- Record
CVE-2026-107257- CVSS 3.1
- 6.5 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N - Weakness
- CWE-863
- Updated
- 2026-11-02
OSVDRUPAL-CONTRIB-2026-198 No score
Actstream (short for Activity Stream) aggregates a user's activity from external services (RSS feeds, etc.) into per-user activity stream entities.
The configuration route does not sufficiently check that the user editing it is the account owner (or a user administrator) leading to an access bypass vulnerability.
- Record
DRUPAL-CONTRIB-2026-198- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
drupal/actstreamPackagist:https://packages.drupal.org/8 |
before 2.0.1, 2.1.0 up to 2.1.1 | 2.0.12.1.1 |
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-2026-107257 is a medium vulnerability (CVSS 6.5) in Drupal Actstream, published October 7, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.19%, the 9th percentile. Fixed in drupal/actstream 2.0.1.