Vulnerability-Lookup

CVE-2025-0825 (GCVE-0-2025-0825)

Vulnerability from cvelistv5 – Published: 2025-02-04 14:11 – Updated: 2025-05-23 12:50

Title

CRLF injection in Cpp-httplib

Summary

cpp-httplib version v0.17.3 through v0.18.3 fails to filter CRLF characters ("\r\n") when those are prefixed with a null byte. This enables attackers to exploit CRLF injection that could further lead to HTTP Response Splitting, XSS, and more.

Severity

6.9 (Medium)


                        
                          CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-02-04 15:41 UTC

CWE

CWE-113 - Improper Neutralization of CRLF Sequences in HTTP Headers ('HTTP Request/Response Splitting')

Assigner

Checkmarx mitre root

References

2 references

URL	Tags
https://github.com/yhirose/cpp-httplib/commit/9c3…	patch
https://advisory.checkmarx.net/advisory/CVE-2025-0825/

Impacted products

1 product

Vendor	Product	Version	CPE status
		Affected: v0.17.3 , ≤ v0.18.3 (git)

Credits

Ori Ron from Cx Security Research Group

Show details on NVD website

JSON

To clipboard

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FKIE_CVE-2025-0825

Vulnerability from fkie_nvd - Published: 2025-02-04 15:15 - Updated: 2026-06-17 08:27

Severity

5.3 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Summary

References

	URL	Tags
	596c5446-0ce5-4ba2-aa66-48b3b757a647	https://advisory.checkmarx.net/advisory/CVE-2025-0825/	Exploit, Third Party Advisory
	596c5446-0ce5-4ba2-aa66-48b3b757a647	https://github.com/yhirose/cpp-httplib/commit/9c36aae4b73e2b6e493f4133e4173103c9266289	Patch

Impacted products

	Vendor	Product	Version
	yhirose	cpp-httplib	*

JSON

To clipboard

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      "source": "596c5446-0ce5-4ba2-aa66-48b3b757a647",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "url": "https://advisory.checkmarx.net/advisory/CVE-2025-0825/"
    },
    {
      "source": "596c5446-0ce5-4ba2-aa66-48b3b757a647",
      "tags": [
        "Patch"
      ],
      "url": "https://github.com/yhirose/cpp-httplib/commit/9c36aae4b73e2b6e493f4133e4173103c9266289"
    }
  ],
  "sourceIdentifier": "596c5446-0ce5-4ba2-aa66-48b3b757a647",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-113"
        }
      ],
      "source": "596c5446-0ce5-4ba2-aa66-48b3b757a647",
      "type": "Secondary"
    }
  ]
}

GHSA-65RJ-829H-6G8X

Vulnerability from github – Published: 2025-02-04 15:31 – Updated: 2025-08-04 15:31

Details

Severity

5.3 (Medium)


                  
                    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

6.9 (Medium)


                  
                    CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2025-0825"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-113"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-02-04T15:15:19Z",
    "severity": "MODERATE"
  },
  "details": "cpp-httplib version v0.17.3 through v0.18.3 fails to filter CRLF characters (\"\\r\\n\") when those are prefixed with a null byte. This enables attackers to exploit CRLF injection that could further lead to HTTP Response Splitting, XSS, and more.",
  "id": "GHSA-65rj-829h-6g8x",
  "modified": "2025-08-04T15:31:07Z",
  "published": "2025-02-04T15:31:37Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-0825"
    },
    {
      "type": "WEB",
      "url": "https://github.com/yhirose/cpp-httplib/commit/9c36aae4b73e2b6e493f4133e4173103c9266289"
    },
    {
      "type": "WEB",
      "url": "https://advisory.checkmarx.net/advisory/CVE-2025-0825"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
      "type": "CVSS_V4"
    }
  ]
}

ubuntu-cve-2025-0825 Withdrawn 2026-03-02

Vulnerability from osv_ubuntu

Published

2025-02-04 15:15

Modified

2026-02-23 20:00

Summary

Details

Severity

6.9 (Medium)


                    
                      CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N

5.3 (Medium)


                    
                      CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

N/A (UNKNOWN)


                    
                      medium

References

URL

Type

	https://ubuntu.com/security/CVE-2025-0825	REPORT
	https://www.cve.org/CVERecord?id=CVE-2025-0825	REPORT
	https://github.com/yhirose/cpp-httplib/commit/9c3…	REPORT

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libcpp-httplib-dev",
            "binary_version": "0.10.3+ds-1ubuntu0.1~esm1"
          },
          {
            "binary_name": "libcpp-httplib0",
            "binary_version": "0.10.3+ds-1ubuntu0.1~esm1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:22.04:LTS",
        "name": "cpp-httplib",
        "purl": "pkg:deb/ubuntu/cpp-httplib@0.10.3+ds-1ubuntu0.1~esm1?arch=source\u0026distro=esm-apps/jammy"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.9.9+ds-1",
        "0.9.10+ds-1",
        "0.10.1+ds-1",
        "0.10.2+ds-1",
        "0.10.3+ds-1",
        "0.10.3+ds-1ubuntu0.1~esm1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libcpp-httplib-dev",
            "binary_version": "0.14.3+ds-1.1ubuntu0.1~esm1"
          },
          {
            "binary_name": "libcpp-httplib0.14t64",
            "binary_version": "0.14.3+ds-1.1ubuntu0.1~esm1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:24.04:LTS",
        "name": "cpp-httplib",
        "purl": "pkg:deb/ubuntu/cpp-httplib@0.14.3+ds-1.1ubuntu0.1~esm1?arch=source\u0026distro=esm-apps/noble"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.13.1+ds-1ubuntu1",
        "0.14.3+ds-1",
        "0.14.3+ds-1.1",
        "0.14.3+ds-1.1build1",
        "0.14.3+ds-1.1build2",
        "0.14.3+ds-1.1ubuntu0.1~esm1"
      ]
    }
  ],
  "aliases": [],
  "details": "cpp-httplib version v0.17.3 through v0.18.3 fails to filter CRLF characters (\"\\r\\n\") when those are prefixed with a null byte. This enables attackers to exploit CRLF injection that could further lead to HTTP Response Splitting, XSS, and more.",
  "id": "UBUNTU-CVE-2025-0825",
  "modified": "2026-02-23T20:00:09Z",
  "published": "2025-02-04T15:15:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2025-0825"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2025-0825"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/yhirose/cpp-httplib/commit/9c36aae4b73e2b6e493f4133e4173103c9266289"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    },
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N",
      "type": "CVSS_V3"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2025-0825"
  ],
  "withdrawn": "2026-03-02T11:09:11Z"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

CVE-2025-0825 (GCVE-0-2025-0825)

FKIE_CVE-2025-0825

GHSA-65RJ-829H-6G8X

ubuntu-cve-2025-0825 Withdrawn 2026-03-02

Vulnerability from osv_ubuntu

Tags

Sightings

Nomenclature

Related by attack behaviour