rssant Information Disclosure via Anonymous publish.story_get Endpoint
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- Low · None · None
- Fix status
- No fix listed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-639.
Summary
rssant from 1.9.0 through 1.9.1 contains an authorization bypass that lets an unauthenticated remote attacker read stories from unpublished feeds through the anonymous publish.story_get endpoint. The UnionStory.get_by_feed_offset function ignores the only_publish flag, so attackers can enumerate feed IDs and offsets to retrieve private feed stories (CWE-639).
Written with Claude Haiku 5.5 from the sources below · 2026-11-02
Description from the CNA
rssant 1.9.0 through 1.9.1 contains an authorization bypass vulnerability that allows unauthenticated attackers to read stories from unpublished feeds through the anonymous publish.story_get endpoint. Because UnionStory.get_by_feed_offset ignores the only_publish flag, attackers can enumerate feed IDs and offsets to retrieve private feed stories.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
The sources list no fixed version for rssant.
Written with Claude Haiku 5.5 from the sources below · 2026-11-02
Timeline
- 2026-10-27 Threatist record created from CVE-2026-117562
- 2026-10-27 Alias added: GHSA-pvf4-vqj9-938h
- 2026-10-28 Priority changed: MEDIUM → LOW
- 2026-11-02 CISA SSVC decision points changed
References
Sources
- CVE-2026-117562 · CVE Program
- CVE-2026-117562 · NVD
- FIRST EPSS
- GHSA-pvf4-vqj9-938h · GitHub Advisory Database · CC BY 4.0
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