Advisory details:
github_osv / GHSA-w9hf-3pp7-pvxv
| Advisory ID | github_osv/GHSA-w9hf-3pp7-pvxv |
| Aliases |
CVE-2026-53841
|
| Summary | OpenClaw: Exported session HTML could keep unsafe markdown links ### Summary Exported session HTML could keep unsafe markdown links. In affected versions, content rendered into an exported session could preserve unsafe `javascript:` or `data:` links in generated HTML. This advisory is scoped to the named feature and configuration. It does not change OpenClaw's trusted-operator model: authenticated Gateway operators, installed plugins, and intentional local execution surfaces remain trusted unless a separate policy, approval, allowlist, sandbox, or auth boundary is crossed. ### Impact When the affected feature is enabled and reachable, this could run browser-side script if a trusted operator opens the exported file and activates the link. Practical impact depends on the operator's configuration and whether lower-trust input can reach that path. ### Patched Versions The first stable patched version is `2026.5.12`. ### Mitigations do not open exported session HTML from untrusted content in a privileged browser profile until patched. As general hardening, keep channel and tool allowlists narrow, avoid sharing one Gateway between mutually untrusted users, and disable the affected feature when it is not needed. |
| Status | Published |
| Exploitability | 0.5 |
| Weighted Severity | 5.5 |
| Risk | 2.8 |
| Affected and Fixed Packages | Package Details |
| Introduced and Fixed Package Commit Patches | Package Commit Patches Details |
| System | Score | Found at |
|---|---|---|
| cvssv3.1 | 6.1 | https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/06/GHSA-w9hf-3pp7-pvxv/GHSA-w9hf-3pp7-pvxv.json |
| generic_textual | MODERATE |
| Reference id | Reference type | URL |
|---|---|---|
| https://github.com/openclaw/openclaw | ||
| CVE-2026-53841 | https://nvd.nist.gov/vuln/detail/CVE-2026-53841 | |
| GHSA-w9hf-3pp7-pvxv | Advisory | https://github.com/openclaw/openclaw/security/advisories/GHSA-w9hf-3pp7-pvxv |
| openclaw-cross-site-scripting-via-unsafe-markdown-links-in-exported-session-html | Advisory | https://www.vulncheck.com/advisories/openclaw-cross-site-scripting-via-unsafe-markdown-links-in-exported-session-html |
No EPSS data available for this advisory.
| Patch URL | |
|---|---|
| There are no known patches. | |
| Attack Vector (AV) | Attack Complexity (AC) | Privileges Required (PR) | User Interaction (UI) | Scope (S) | Confidentiality Impact (C) | Integrity Impact (I) | Availability Impact (A) |
|---|---|---|---|---|---|---|---|
network adjacent_network local physical |
low high |
none low high |
none required |
unchanged changed |
high low none |
high low none |
high low none |
Vector: SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2026-06-17T14:48:23Z/
Decision: Track
Source URL: https://github.com/cisagov/vulnrichment/blob/develop/2026/53xxx/CVE-2026-53841.json
Source Advisory: vulnrichment/CVE-2026-53841
[{'Exploitation': 'none'},
{'Automatable': 'no'},
{'Technical Impact': 'partial'},
{'Mission Prevalence': 'minimal'},
{'Public Well-being Impact': 'material'},
{'Mission & Well-being': 'medium'}]