Description
Apprise is an open source library which allows you to send a notification to almost all of the most popular notification services available. Prior to 1.11.0, Apprise HTTP-based notification plugins and HTTP attachment and config loaders in apprise/attachment/http.py and apprise/config/http.py follow HTTP redirects by default and resend user-configured auth headers and query parameters on the redirected request, allowing a compromised trusted destination or on-path attacker to receive secrets such as Authorization headers, bearer tokens, custom headers, and service keys. This issue is fixed in version 1.11.0.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| caronc | apprise | < 1.11.0 | — |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | apprise | 1.11.0-1 | — |
| Debian 13 | apprise | No fix yet | — |
| Debian 12 | apprise | No fix yet | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.04 LTS | apprise | No fix yet | — |
| Ubuntu 24.04 LTS | apprise | No fix yet | — |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Leap 16.0 | python-apprise | 1.9.3-bp160.2.1 | openSUSE-SU-2026:21789-1 |
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| PyPI | apprise | < 1.11.0 | 1.11.0 | GHSA-856c-92hv-3vxx |
Advisories 1
- openSUSE-SU-2026:21789-1 Security update for python-apprise SUSE / openSUSE Security Updates · Sep 9, 2026