CVE-2026-117562

Description

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through 1.9.1 contains an authorization bypass vulnerability that allows unauthenticated attackers to read stories from unpublished feeds through the anonymous publish.story_get endpoint.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.

References

• https://github.com/anyant/rssant
• https://github.com/anyant/rssant/blob/v1.9.1/rssant_api/models/union_story.py#L197-L200
• https://github.com/anyant/rssant/commit/b65336f1414a32a50670ee2ba7e87cb38e0ad47b
• https://github.com/anyant/rssant/issues/155
• https://www.vulncheck.com/advisories/rssant-1.9.0-through-1.9.1-information-disclosure-via-publish-story-get-endpoint