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cve.new
GHSA-wxmh-65f7-jcvwmedium5.3

Improper header name validation in guzzlehttp/psr7

Check your stack

The advisory, in context

Impact

Improper header parsing. An attacker could sneak in a newline (\n) into both the header names and values. While the specification states that \r\n\r\n is used to terminate the header list, many servers in the wild will also accept \n\n.

Patches

The issue is patched in 1.9.1 and 2.4.5.

Workarounds

There are no known workarounds.

References

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 1.9.1

Fixed in 1.9.1

24 explicitly affected versions

1.0.0, 1.1.0, 1.2.0, 1.2.1, 1.2.2, 1.2.3, 1.3.0, 1.3.1, 1.4.0, 1.4.1, 1.4.2, 1.5.0, 1.5.1, 1.5.2, 1.6.0, 1.6.1, 1.7.0, 1.8.0, 1.8.1, 1.8.2, 1.8.3, 1.8.4, 1.8.5, 1.9.0

View affected-version evidence
{
  "ranges": [
    {
      "events": [
        {
          "introduced": "0"
        },
        {
          "fixed": "1.9.1"
        }
      ],
      "type": "ECOSYSTEM"
    }
  ],
  "versions": [
    "1.0.0",
    "1.1.0",
    "1.2.0",
    "1.2.1",
    "1.2.2",
    "1.2.3",
    "1.3.0",
    "1.3.1",
    "1.4.0",
    "1.4.1",
    "1.4.2",
    "1.5.0",
    "1.5.1",
    "1.5.2",
    "1.6.0",
    "1.6.1",
    "1.7.0",
    "1.8.0",
    "1.8.1",
    "1.8.2",
    "1.8.3",
    "1.8.4",
    "1.8.5",
    "1.9.0"
  ]
}
Ecosystem versions

From 2.0.0 before 2.4.5

Fixed in 2.4.5

13 explicitly affected versions

2.0.0, 2.1.0, 2.1.1, 2.1.2, 2.2.0, 2.2.1, 2.2.2, 2.3.0, 2.4.0, 2.4.1, 2.4.2, 2.4.3, 2.4.4

View affected-version evidence
{
  "ranges": [
    {
      "events": [
        {
          "introduced": "2.0.0"
        },
        {
          "fixed": "2.4.5"
        }
      ],
      "type": "ECOSYSTEM"
    }
  ],
  "versions": [
    "2.0.0",
    "2.1.0",
    "2.1.1",
    "2.1.2",
    "2.2.0",
    "2.2.1",
    "2.2.2",
    "2.3.0",
    "2.4.0",
    "2.4.1",
    "2.4.2",
    "2.4.3",
    "2.4.4"
  ]
}

References