CVE-2026-47716
Bugsink: Issue bulk actions can affect another project’s issue if its UUID is known
Bugsink is a self-hosted error tracking tool. Prior to 2.2.0, In affected versions, the issue list view authorizes access through the project in the URL, but applies the requested bulk action to the submitted issue IDs without also requiring those issues to belong to that project. This vulnerability is fixed in 2.2.0.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- High
- Privileges needed
- Low
- User interaction
- None
What an attacker can affect
- Confidentiality
- None
- Integrity
- Low
- Availability
- None
Exploit likelihood
What each source reports
CVE List Score used
3.1
Bugsink: Issue bulk actions can affect another project’s issue if its UUID is known
Bugsink is a self-hosted error tracking tool. Prior to 2.2.0, In affected versions, the issue list view authorizes access through the project in the URL, but applies the requested bulk action to the submitted issue IDs without also requiring those issues to belong to that project. This vulnerability is fixed in 2.2.0.
- Record
CVE-2026-47716- CVSS 3.1
- 3.1 Low
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:N - Weakness
- CWE-639
- Updated
- 2026-11-02
EUVDEUVD-2026-31862
3.1
Bugsink is a self-hosted error tracking tool. Prior to 2.2.0, In affected versions, the issue list view authorizes access through the project in the URL, but applies the requested bulk action to the submitted issue IDs without also requiring those issues to belong to that project. This vulnerability is fixed in 2.2.0.
- Record
EUVD-2026-31862- CVSS 3.1
- 3.1 Low
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:N - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-g5vc-q7qc-v939
3.1
Bugsink: Issue bulk actions can affect another project’s issue if its UUID is known
Description
Bugsink’s issue list supports bulk actions such as resolving or muting selected issues. In affected versions, the issue list view authorizes access through the project in the URL, but applies the requested bulk action to the submitted issue IDs without also requiring those issues to belong to that project.
This is a project-boundary authorization issue: a logged-in user with access to one project can change the state of an issue in another project. However, the issue is mitigated by two factors. First, the attacker needs to already know a valid target issue UUID; there is no issue enumeration path here, and guessing UUIDs is not practical. Second, Bugsink is commonly self-hosted within a single trust domain, and Hosted Bugsink gives each tenant a separate Bugsink instance, so cross-project access does not normally imply cross-tenant access.
This has been fixed by requiring bulk issue actions to operate only on issues belonging to the authorized project.
Impact
Low-severity cross-project issue state modification, requiring authentication and prior knowledge of a valid issue UUID.
- Record
GHSA-g5vc-q7qc-v939- CVSS 3.1
- 3.1 Low
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:N - Weakness
- CWE-639
- Updated
- 2026-11-02
NVD
3.1
Bugsink is a self-hosted error tracking tool. Prior to 2.2.0, In affected versions, the issue list view authorizes access through the project in the URL, but applies the requested bulk action to the submitted issue IDs without also requiring those issues to belong to that project. This vulnerability is fixed in 2.2.0.
- Record
CVE-2026-47716- CVSS 3.1
- 3.1 Low
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:N - Weakness
- CWE-639
- Updated
- 2026-11-02
OSV
3.1
Bugsink: Issue bulk actions can affect another project’s issue if its UUID is known
Bugsink is a self-hosted error tracking tool. Prior to 2.2.0, In affected versions, the issue list view authorizes access through the project in the URL, but applies the requested bulk action to the submitted issue IDs without also requiring those issues to belong to that project. This vulnerability is fixed in 2.2.0.
- Record
CVE-2026-47716- CVSS 3.1
- 3.1 Low
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:N - Weakness
- CWE-639
- Updated
- 2026-11-02
OSVGHSA-g5vc-q7qc-v939
3.1
Bugsink: Issue bulk actions can affect another project’s issue if its UUID is known
Description
Bugsink’s issue list supports bulk actions such as resolving or muting selected issues. In affected versions, the issue list view authorizes access through the project in the URL, but applies the requested bulk action to the submitted issue IDs without also requiring those issues to belong to that project.
This is a project-boundary authorization issue: a logged-in user with access to one project can change the state of an issue in another project. However, the issue is mitigated by two factors. First, the attacker needs to already know a valid target issue UUID; there is no issue enumeration path here, and guessing UUIDs is not practical. Second, Bugsink is commonly self-hosted within a single trust domain, and Hosted Bugsink gives each tenant a separate Bugsink instance, so cross-project access does not normally imply cross-tenant access.
This has been fixed by requiring bulk issue actions to operate only on issues belonging to the authorized project.
Impact
Low-severity cross-project issue state modification, requiring authentication and prior knowledge of a valid issue UUID.
- Record
GHSA-g5vc-q7qc-v939- CVSS 3.1
- 3.1 Low
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:N - Weakness
- CWE-639
- Updated
- 2026-11-02
OSVPYSEC-2026-2406
3.1
Bugsink: Issue bulk actions can affect another project’s issue if its UUID is known
Description
Bugsink’s issue list supports bulk actions such as resolving or muting selected issues. In affected versions, the issue list view authorizes access through the project in the URL, but applies the requested bulk action to the submitted issue IDs without also requiring those issues to belong to that project.
This is a project-boundary authorization issue: a logged-in user with access to one project can change the state of an issue in another project. However, the issue is mitigated by two factors. First, the attacker needs to already know a valid target issue UUID; there is no issue enumeration path here, and guessing UUIDs is not practical. Second, Bugsink is commonly self-hosted within a single trust domain, and Hosted Bugsink gives each tenant a separate Bugsink instance, so cross-project access does not normally imply cross-tenant access.
This has been fixed by requiring bulk issue actions to operate only on issues belonging to the authorized project.
Impact
Low-severity cross-project issue state modification, requiring authentication and prior knowledge of a valid issue UUID.
- Record
PYSEC-2026-2406- CVSS 3.1
- 3.1 Low
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:N - Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
bugsinkPyPI |
before 2.2.0 | 2.2.0 |
bugsinkPyPI |
before 2.2.0, plus listed versions 0.0.10.1.120.1.130.1.140.1.15 Show 45 moreShow less0.1.160.1.170.1.180.1.190.1.201.0.01.0.11.1.01.1.11.1.21.2.01.3.01.4.01.4.11.4.21.4.31.5.01.5.11.5.21.5.31.5.41.5.51.6.01.6.11.6.21.6.31.6.41.7.01.7.11.7.21.7.31.7.41.7.51.7.62.0.02.0.0a12.0.12.0.102.0.112.0.122.0.132.0.142.0.22.0.32.0.4 |
2.2.0 |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases, published | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2026-47716 is a low vulnerability (CVSS 3.1) in Bugsink, published May 26, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.15%, the 3rd percentile. Fixed in bugsink 2.2.0.
References
github.com/bugsink/bugsink/security/advisories/GHSA-g5vc-q7qc-v939
github.com/bugsink/bugsink/releases/tag/2.2.0
nvd.nist.gov/vuln/detail/CVE-2026-47716
github.com/advisories/GHSA-g5vc-q7qc-v939
github.com/CVEProject/cvelistV5/tree/main/cves/2026/47xxx/CVE-2026-47716.json
github.com/bugsink/bugsink
pypi.org/project/bugsink
Left out here: 9 versions. The JSON record has them.