CVE-2024-23826: spbu_se_site · Unthrottled Resource Allocation
Affects spbu_se_siteSource CVE Database V5
Not known to be exploited · CVSS 6.8 Medium : upgrade to 2024.01.29 when convenient.
Data as of 26 Oct 2026, 14:05 UTC
- EPSS
- 0.4% chance of exploitation in 30 days – higher than 38% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 2024.01.29
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:HExploitation evidence
Disclosed: evidence found.
CVE published 29 Jan 2024
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.
What to do
Upgrade spbu-se/spbu_se_site to 2024.01.29.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
GitHubspbu-se/spbu_se_sitepkg:github/spbu-se/spbu_se_siteOther threats | Affected
| Fixed in
|
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
Organizations should immediately update spbu_se_site installations to version 2024.01.29 or later, which contains the fix for this vulnerability. If immediate patching is not possible, implement strict input validation and limit the maximum length of uploaded filenames at the application level to prevent excessively long Unicode strings. Additionally, monitor server resource usage for abnormal spikes during avatar uploads to detect potential exploitation attempts. Restrict avatar upload functionality to trusted users and consider adding CAPTCHA or other interaction controls to reduce automated abuse. On Windows servers, review Unicode normalization handling and consider applying OS-level mitigations or resource limits to prevent excessive CPU consumption. Regularly audit authentication and upload logs to identify suspicious activity. Finally, educate users about secure upload practices and the risks of uploading files with unusual filenames.
Description
spbu_se_site is the website of the Department of System Programming of St. Petersburg State University. Before 2024.01.29, when uploading an avatar image, an authenticated user may intentionally use a large Unicode filename which would lead to a server-side denial of service under Windows. This is due to no limitation of the length of the filename and the costly use of the Unicode normalization with the form NFKD on Windows OS. This vulnerability was fixed in the 2024.01.29 release.