Machine-written summary
Summary written by Claude Haiku from the source advisory. Not reviewed by a person.
PinchTab versions before 0.8.3 have a blind server-side request forgery flaw in the /download endpoint. The URL check runs only on the initial user-supplied URL, so a page loaded by the embedded Chromium browser can redirect it to internal addresses such as localhost. An attacker needs the download feature enabled, which is disabled by default, and can then trigger state-changing requests to internal services without receiving the responses. Upgrade to PinchTab 0.8.3 or later.
Not analysed yet
We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.
Severity and exploitation
| Score | Rating | CVSS | Vector | Source |
|---|---|---|---|---|
| 5.8 | Medium | 3.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N | CNA (GitHub_M) |
- CISA KEV Not listed.
- EPSS 0.0032, the 25th percentile, on 15 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.
Timeline
- 31 Oct 2026, 15:08 UTC First seen by agentprime
- 31 Oct 2026, 15:08 UTC Confirmed by OSV