GIVE YOUR AGENT THE EVIDENCE

Set up in your agent.

One prompt to get started. Paste it into your coding agent to connect cve.new through MCP and bring vulnerability context into your workflow.

Your agent needs remote MCP support and access to https://cve.new/mcp.

Read the setup guide

GIVE YOUR AGENT THE EVIDENCE

Investigate in your agent.

Turn this advisory into a focused investigation. Ask your agent to check your project’s versions, explain the evidence, and suggest a compatible fix.

Your agent needs remote MCP support and access to https://cve.new/mcp.

Read the setup guide

cve.new
GHSA-6cq5-8cj7-g558high8.6

CodeIgniter4 Potential Session Handlers Vulnerability

Check your stack

The advisory, in context

Impact

When an application uses (1) multiple session cookies (e.g., one for user pages and one for admin pages) and (2) a session handler is set to DatabaseHandler, MemcachedHandler, or RedisHandler, then if an attacker gets one session cookie (e.g., one for user pages), they may be able to access pages that require another session cookie (e.g., for admin pages).

Patches

Upgrade to version 4.2.11 or later.

Workarounds

  • Use only one session cookie.

References

For more information

If you have any questions or comments about this advisory:

Affected packages

Start with the recorded fix for your release branch. Check your installed version and test compatibility before upgrading. Fixing this advisory does not rule out other vulnerabilities in the release.

Ecosystem versions

Earlier releases before 4.2.11

Fixed in 4.2.11

39 explicitly affected versions

4.0.0, 4.0.0-rc.4, v4.0.0-alpha.3, v4.0.0-alpha.4, v4.0.0-alpha.5, v4.0.0-beta.1, v4.0.0-beta.2, v4.0.0-beta.3, v4.0.0-beta.4, v4.0.0-rc.1, v4.0.0-rc.2, v4.0.0-rc.2.1, v4.0.0-rc.3, v4.0.1, v4.0.2, v4.0.3, v4.0.4, v4.0.5, v4.1.0, v4.1.1, v4.1.2, v4.1.3, v4.1.4, v4.1.5, v4.1.6, v4.1.7, v4.1.8, v4.1.9, v4.2.0, v4.2.1, v4.2.10, v4.2.2, v4.2.3, v4.2.4, v4.2.5, v4.2.6, v4.2.7, v4.2.8, v4.2.9

View affected-version evidence
{
  "ranges": [
    {
      "events": [
        {
          "introduced": "0"
        },
        {
          "fixed": "4.2.11"
        }
      ],
      "type": "ECOSYSTEM"
    }
  ],
  "versions": [
    "4.0.0",
    "4.0.0-rc.4",
    "v4.0.0-alpha.3",
    "v4.0.0-alpha.4",
    "v4.0.0-alpha.5",
    "v4.0.0-beta.1",
    "v4.0.0-beta.2",
    "v4.0.0-beta.3",
    "v4.0.0-beta.4",
    "v4.0.0-rc.1",
    "v4.0.0-rc.2",
    "v4.0.0-rc.2.1",
    "v4.0.0-rc.3",
    "v4.0.1",
    "v4.0.2",
    "v4.0.3",
    "v4.0.4",
    "v4.0.5",
    "v4.1.0",
    "v4.1.1",
    "v4.1.2",
    "v4.1.3",
    "v4.1.4",
    "v4.1.5",
    "v4.1.6",
    "v4.1.7",
    "v4.1.8",
    "v4.1.9",
    "v4.2.0",
    "v4.2.1",
    "v4.2.10",
    "v4.2.2",
    "v4.2.3",
    "v4.2.4",
    "v4.2.5",
    "v4.2.6",
    "v4.2.7",
    "v4.2.8",
    "v4.2.9"
  ]
}

References