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TI-2026-42332 Aliases CVE-2026-59180GHSA-856c-92hv-3vxx

Apprise forwards configured auth headers across cross-origin HTTP redirects

Priority MEDIUM 48CWE-200Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Required
Attack complexity
High
Impact type
Information disclosure, Spoofing
Confidentiality · integrity · availability
Low · None · None
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub. Impact type from CWE-200 and CWE-601.

Summary

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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00299 22nd percentileScored 2026-11-07
Fix Fixed apprise (caronc): 1.11.0apprise (PyPI): 1.11.0

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
caroncapprisebefore 1.11.01.11.0Patch availableCNA
—apprise (PyPI)before 1.11.01.11.0Patch availableGHSA-856c-92hv-3vxx
  • apprise Vendorcaronc Affected before 1.11.0 Fixed in 1.11.0 Patch available CNA
  • apprise (PyPI) Vendor— Affected before 1.11.0 Fixed in 1.11.0 Patch available GHSA-856c-92hv-3vxx

Remediation

  • Fix · CNA apprise (caronc) Fixed in 1.11.0
  • Fix · GHSA-856c-92hv-3vxx apprise (PyPI) Fixed in 1.11.0 Advisory →

Vendor assessments

Red Hat

Red Hat's page for this CVE →

Not affected: 1 product
  • Red Hat

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-59180
  2. 2026-10-15 Alias added: GHSA-856c-92hv-3vxx
  3. 2026-10-15 Fix available: PyPI/[email protected] · GHSA-856c-92hv-3vxx
  4. 2026-10-15 CVSS score added · GHSA-856c-92hv-3vxx
  5. 2026-10-15 Weakness changed · GHSA-856c-92hv-3vxx
  6. 2026-10-15 6 new references · GHSA-856c-92hv-3vxx

References

Advisory 1

Other 5

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences