Medium severity · published Oct 27, 2026
CVE-2026-117562
rssant 1.9.0 through 1.9.1 Information Disclosure via publish.story_get Endpoint
New
5.3
CVSS
0.3%
EPSS
No
On KEV
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through 1.9.1 contains an authorization bypass vulnerability that allows unauthenticated attackers to read stories from unpublished feeds through the anonymous publish.story_get endpoint.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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
Low
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 25% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
RS
rssant · anyant
1.9.0 through 1.9.1 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-117562
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-117562
github.com
https://github.com/anyant/rssant
github.com
https://github.com/anyant/rssant/blob/v1.9.1/rssant_api/models/union_story.py#L197-L200
github.com
https://github.com/anyant/rssant/commit/b65336f1414a32a50670ee2ba7e87cb38e0ad47b
github.com
https://github.com/anyant/rssant/issues/155
www.vulncheck.com
https://www.vulncheck.com/advisories/rssant-1.9.0-through-1.9.1-information-disclosure-via-publish-story-get-endpoint