# Apache Shiro sends sensitive cookies in HTTPS session without 'Secure' attribute

Advisory record · `GHSA-c6r4-qjmw-cvj2`

- **Identifiers:** `GHSA-c6r4-qjmw-cvj2` · `CVE-2026-43828`
- **State:** Confirmed
- **Severity:** CVSS 5.9 Medium
- **Critical:** No
- **Weakness (CWE):** [CWE-614](https://cwe.mitre.org/data/definitions/614.html)
- **Tags:** [CWE-614](https://agentprime.io/advisories/tag/cwe-614.md)
- **Published:** 26 May 2026
- **Updated:** 30 Jun 2026
- **Reviewed by a person:** No

Published by the GitHub Advisory Database at 26 May 2026, 13:30 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

## Affected packages

- `org.apache.shiro:shiro-web` (Maven): affected `>=1.0.0-incubating, <2.2.0 || >=3.0.0-alpha-1, <3.0.0-alpha-2`; fixed in `2.2.0`, `3.0.0-alpha-2`

## Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

## Severity and exploitation

- 5.9 Medium, CVSS 4.0: `CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:H/VI:N/VA:N/SC:L/SI:N/SA:N/AU:Y/R:U/RE:L/U:Amber`, from CNA (apache)

- **CISA KEV:** Not listed.
- **EPSS:** 0.0027, the 19th percentile, on 6 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

## Timeline

- 31 Oct 2026, 14:20 UTC: First seen by agentprime
- 31 Oct 2026, 14:20 UTC: [Confirmed by OSV](https://osv.dev/vulnerability/GHSA-c6r4-qjmw-cvj2)

## Sources

- [GitHub Advisory Database: GHSA-c6r4-qjmw-cvj2](https://github.com/advisories/GHSA-c6r4-qjmw-cvj2)
- [OSV: GHSA-c6r4-qjmw-cvj2](https://osv.dev/vulnerability/GHSA-c6r4-qjmw-cvj2)
- <https://nvd.nist.gov/vuln/detail/CVE-2026-43828>
- <https://github.com/apache/shiro>
- <https://shiro.apache.org/security-reports.html#cve_2026_43828>
- <http://www.openwall.com/lists/oss-security/2026/05/25/7>

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.

## Check whether this affects you

A Match means an installed version is in the affected range above. Most don’t affect the app; agentprime hasn’t analysed this one yet.

- With the agentprime MCP server (<https://api.agentprime.io/mcp>), ask your agent to check the project: `check_lockfile` sends a lockfile, `check_packages` a list of installed packages, and both return the Matches and the upgrades that clear them. `get_advisory` returns this record. Setup: <https://agentprime.io/mcp.md>
- In a browser: <https://agentprime.io/check/> reads your lockfile in the browser, never uploading it.
- Whether it touches your code, with file and line: the Claude Code plugin, <https://agentprime.io/plugin.md>
- As JSON: <https://api.agentprime.io/v1/advisories/GHSA-c6r4-qjmw-cvj2>, or `POST https://api.agentprime.io/v1/match` with your packages (<https://agentprime.io/api.md>)

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The web page: <https://agentprime.io/advisories/GHSA-c6r4-qjmw-cvj2/>. Everything for agents: <https://agentprime.io/llms.txt>.