PYSEC-2026-738
See a problem?- Import Source
- https://github.com/pypa/advisory-database/blob/main/vulns/pollbot/PYSEC-2026-738.yaml
- JSON Data
- https://api.osv.dev/v1/vulns/PYSEC-2026-738
- Aliases
- Published
- 2026-07-02T14:13:15.349245Z
- Modified
- 2026-07-06T08:00:50.600875365Z
- Severity
-
- 6.1 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N CVSS Calculator
- Summary
- open redirect in pollbot
- Details
-
(From https://bugzilla.mozilla.org/show_bug.cgi?id=1753838)
Summary: There was an open redirection vulnerability in the path of:
https://pollbot.services.mozilla.com/ and https://pollbot.stage.mozaws.net/
Description: An attacker can redirect anyone to malicious sites.
Steps To Reproduce: Type in this URL:
https://pollbot.services.mozilla.com/%0a/evil.com/
It redirects to that website
evil.com
evil.com was used as an example but this could be any website. Note, the /%0a/ and trailing / are required.
Supporting Material/References: https://cheatsheetseries.owasp.org/cheatsheets/UnvalidatedRedirectsandForwardsCheat_Sheet.html
Impact
Attackers can serve malicious websites that steal passwords or download ransomware to their victims machine due to a redirect and there are a heap of other attack vectors.
- References
-
- https://github.com/mozilla/PollBot/security/advisories/GHSA-vg27-hr3v-3cqv
- https://nvd.nist.gov/vuln/detail/CVE-2022-0637
- https://github.com/mozilla/PollBot/pull/360
- https://github.com/mozilla/PollBot/commit/e39d8bec2df582ba525bb2e2f33c3ebc584d7ff8
- https://bugzilla.mozilla.org/show_bug.cgi?id=1753838
- https://bugzilla.mozilla.org/show_bug.cgi?id=CVE-2022-0637
- https://github.com/mozilla/PollBot
- https://pypi.org/project/pollbot
- https://github.com/advisories/GHSA-vg27-hr3v-3cqv
Affected packages
PyPI / pollbot
Package
- Name
- pollbot
- View open source insights on deps.dev
- Purl
- pkg:pypi/pollbot
Affected ranges
- Type
- ECOSYSTEM
- Events
-
Introduced0Unknown introduced version / All previous versions are affectedFixed1.4.6