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High

Security advisory

Type: advisorySources: OSVCVE: CVE-2022-27781

libcurl provides the `CURLOPT_CERTINFO` option to allow applications torequest details to be returned about a server's certificate chain.Due to an erroneous function, a malicious server could make libcurl built withNSS get stuck in a never-ending busy-loop when trying to retrieve thatinformation.

Products
Not specified
Affected versions
Not specified
Fixed versions
Not specified
CVEs
CVE-2022-27781
Confirmed fixed CVEs
Not specified
Updated in this feed
2 Nov 2026, 16:45 UTC · Revision 1

Source evidence

CVE-2022-27781

core-osv · Original source

Published 1 Jun 2022, 00:00 UTC

libcurl provides the `CURLOPT_CERTINFO` option to allow applications torequest details to be returned about a server's certificate chain.Due to an erroneous function, a malicious server could make libcurl built withNSS get stuck in a never-ending busy-loop when trying to retrieve thatinformation.

osv:CVE-2022-27781
Complete source record
{
  "id": "9aaf07948e57363fd409dcb90087c4f463a2b89b3d42a599a483261e9adbac77",
  "url": "https://osv.dev/vulnerability/CVE-2022-27781",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2022-27781",
    "summary": "libcurl provides the `CURLOPT_CERTINFO` option to allow applications torequest details to be returned about a server's certificate chain.Due to an erroneous function, a malicious server could make libcurl built withNSS get stuck in a never-ending busy-loop when trying to retrieve thatinformation.",
    "evidence": "osv:CVE-2022-27781",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2022-27781",
      "aliases": [
        "CURL-CVE-2022-27781",
        "CVE-2022-27781"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/curl/curl",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "462196e6b4a47f924293a0e26b8e9c23d37ac26f"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:haxx:curl:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "7.83.1"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "curl-7_83_0",
            "curl-7_82_0",
            "curl-7_81_0",
            "curl-7_80_0",
            "curl-7_79_1",
            "curl-7_79_0",
            "curl-7_78_0",
            "curl-7_77_0",
            "curl-7_76_1",
            "curl-7_76_0",
            "curl-7_75_0",
            "curl-7_74_0",
            "curl-7_73_0",
            "curl-7_72_0",
            "curl-7_71_1",
            "curl-7_71_0",
            "curl-7_70_0",
            "curl-7_69_1",
            "curl-7_69_0",
            "curl-7_68_0",
            "curl-7_67_0",
            "curl-7_66_0",
            "curl-7_65_3",
            "curl-7_65_2",
            "curl-7_65_1",
            "curl-7_65_0",
            "curl-7_64_1",
            "curl-7_64_0",
            "curl-7_63_0",
            "curl-7_62_0",
            "curl-7_61_1",
            "curl-7_61_0",
            "curl-7_60_0",
            "curl-7_59_0",
            "curl-7_58_0",
            "curl-7_57_0",
            "curl-7_56_1",
            "curl-7_56_0",
            "curl-7_55_1",
            "curl-7_55_0",
            "curl-7_54_1",
            "curl-7_54_0",
            "curl-7_53_1",
            "curl-7_53_0",
            "curl-7_52_1",
            "curl-7_52_0",
            "curl-7_51_0",
            "curl-7_50_3",
            "curl-7_50_2",
            "curl-7_50_1",
            "curl-7_50_0",
            "curl-7_49_1",
            "curl-7_49_0",
            "curl-7_48_0",
            "curl-7_47_1",
            "curl-7_47_0",
            "curl-7_46_0",
            "curl-7_45_0",
            "curl-7_44_0",
            "curl-7_43_0",
            "curl-7_42_0",
            "curl-7_41_0",
            "curl-7_40_0",
            "curl-7_39_0",
            "curl-7_38_0",
            "curl-7_37_1",
            "curl-7_37_0",
            "curl-7_36_0",
            "curl-7_35_0",
            "curl-7_34_0",
            "curl-7_33_0",
            "curl-7_32_0",
            "curl-7_31_0",
            "curl-7_30_0",
            "curl-7_29_0",
            "curl-7_28_1",
            "curl-7_28_0",
            "curl-7_27_0",
            "curl-7_26_0",
            "curl-7_25_0",
            "curl-7_23_1",
            "curl-7_23_0",
            "curl-7_22_0",
            "curl-7_21_7",
            "curl-7_21_6",
            "curl-7_21_5",
            "curl-7_21_4",
            "curl-7_21_3",
            "curl-7_21_2",
            "curl-7_21_1",
            "curl-7_21_0",
            "curl-7_20_1",
            "curl-7_20_0",
            "curl-7_19_7",
            "curl-7_19_6",
            "curl-7_19_5",
            "curl-7_19_4",
            "curl-7_19_3",
            "curl-7_19_2",
            "curl-7_19_1",
            "curl-7_19_0",
            "curl-7_18_2",
            "curl-7_18_1",
            "curl-7_18_0",
            "curl-7_17_1",
            "curl-7_17_0",
            "curl-7_17_0-preldapfix",
            "curl-7_16_4",
            "curl-7_16_3",
            "curl-7_16_2",
            "curl-7_16_1",
            "curl-7_16_0",
            "curl-7_15_6-prepipeline",
            "curl-7_15_5",
            "curl-7_15_4",
            "curl-7_15_3",
            "curl-7_15_2",
            "curl-7_15_1",
            "curl-7_15_0",
            "curl-7_14_1",
            "curl-7_14_0",
            "curl-7_13_2",
            "curl-7_13_1",
            "before_ftp_statemachine",
            "curl-7_13_0",
            "curl-7_12_3",
            "curl-7_12_2",
            "curl-7_12_1",
            "curl-7_12_0",
            "curl-7_11_2",
            "curl-7_11_1",
            "curl-7_11_0",
            "curl-7_10_8",
            "curl-7_10_7",
            "curl-7_10_6",
            "curl-7_10_5",
            "curl-7_10_4",
            "curl-7_10_3",
            "curl-7_10_2",
            "curl-7_10_1",
            "curl-7_10",
            "curl-7_9_8",
            "curl-7_9_7",
            "curl-7_9_7-pre2",
            "curl-7_9_6",
            "curl-7_9_5",
            "curl-7_9_5-pre4",
            "curl-7_9_5-pre2",
            "curl-7_9_4",
            "curl-7_9_3",
            "curl-7_9_3-pre3",
            "curl-7_9_3-pre2",
            "curl-7_9_3-pre1",
            "curl-7_9_2",
            "curl-7_9_1",
            "curl-7_9",
            "before_urldata_rename",
            "curl-7_8_1",
            "curl-7_8_1-pre3",
            "curl-7_8",
            "curl-7_8-pre2",
            "curl-7_7_3",
            "curl-7_7_2",
            "curl-7_7_1",
            "curl-7_7",
            "curl-7_7-beta5",
            "curl-7_7-beta3",
            "curl-7_7-beta2",
            "curl-7_7-beta1",
            "curl-7_7_alpha2",
            "curl-7_6_1",
            "curl-7_6_1-pre3",
            "curl-7_6_1-pre2",
            "curl-7_6_1-pre1",
            "curl-7_6",
            "curl-7_6-pre4",
            "curl_7_6-pre3",
            "curl-7_5_2",
            "curl-7_5",
            "curl-7_4_1",
            "curl-7_3",
            "curl-7_2",
            "curl-7_1_1",
            "curl-6_5_2",
            "curl-6_5_1",
            "curl-6_5"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2022-27781.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:21.061700251Z",
      "provider": "osv",
      "references": [
        "https://cert-portal.siemens.com/productcert/html/ssa-146325.html",
        "https://cert-portal.siemens.com/productcert/html/ssa-398330.html",
        "https://hackerone.com/reports/1555441",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/27xxx/CVE-2022-27781.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2022-27781",
        "https://security.gentoo.org/glsa/202212-01",
        "https://security.netapp.com/advisory/ntap-20220609-0009/",
        "https://www.debian.org/security/2022/dsa-5197",
        "https://lists.debian.org/debian-lts-announce/2022/08/msg00017.html"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-400"
        ],
        "cna_assigner": "hackerone",
        "unresolved_ranges": [
          {
            "extracted_events": [
              {
                "range": [
                  {
                    "fixed": "7.83.1"
                  }
                ],
                "source": "AFFECTED_FIELD",
                "strategy": "VersionTextExtraction"
              }
            ]
          }
        ],
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/27xxx/CVE-2022-27781.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2022-27781",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 487346,
  "published_at": "2022-06-01T00:00:00+00:00"
}