CVE-2022-1586

An out-of-bounds read vulnerability was discovered in the PCRE2 library in the compile_xclass_matchingpath() function of the pcre2_jit_compile.c file. This involves a unicode property matching issue in JIT-compiled regular expressions. The issue occurs because the character was not fully read in case-less matching within JIT.

Database specific

{
    "cna_assigner":  "redhat",
    "cwe_ids":  [
        "CWE-125"
    ],
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/1xxx/CVE-2022-1586.json",
    "unresolved_ranges":  [
        {
            "extracted_events":  [
                {
                    "introduced":  "Fixed in pcre2-10.40."
                },
                {
                    "last_affected":  "Fixed in pcre2-10.40."
                }
            ],
            "source":  "AFFECTED_FIELD"
        }
    ]
}

References

Affected packages

Git / github.com/pcre2project/pcre2

Affected ranges

Type

GIT

Repo

https://github.com/pcre2project/pcre2

Events

Introduced

Fixed

3103b8f20a3b9944b177e812fde29fbfb8b90558

Fixed

50a51cb7e67268e6ad417eb07c9de9bfea5cc55a

Fixed

d4fa336fbcc388f89095b184ba6d99422cfc676c

Database specific

Show details

{
    "cpe":  "cpe:2.3:a:pcre:pcre2:*:*:*:*:*:*:*:*",
    "extracted_events":  [
        {
            "introduced":  "0"
        },
        {
            "fixed":  "10.40"
        }
    ],
    "source":  [
        "CPE_RANGE",
        "REFERENCES"
    ]
}

Affected versions

pcre2-10.*

pcre2-10.38

pcre2-10.38-RC1

pcre2-10.39

Database specific

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2022-1586.json"

vanir_signatures

[
    {
        "deprecated":  false,
        "digest":  {
            "function_hash":  "41300829383723252943297909714980710868",
            "length":  19889
        },
        "id":  "CVE-2022-1586-2fd20eca",
        "signature_type":  "Function",
        "signature_version":  "v1",
        "source":  "https://github.com/pcre2project/pcre2/commit/50a51cb7e67268e6ad417eb07c9de9bfea5cc55a",
        "target":  {
            "file":  "src/pcre2_jit_compile.c",
            "function":  "compile_xclass_matchingpath"
        }
    },
    {
        "deprecated":  false,
        "digest":  {
            "line_hashes":  [
                "339620945348427712212381388545774342412",
                "124167549058306645007988220067075173415",
                "309395507812416031802042378554291166529",
                "16059173172654235410661150339161003337"
            ],
            "threshold":  0.9
        },
        "id":  "CVE-2022-1586-486e13a2",
        "signature_type":  "Line",
        "signature_version":  "v1",
        "source":  "https://github.com/pcre2project/pcre2/commit/50a51cb7e67268e6ad417eb07c9de9bfea5cc55a",
        "target":  {
            "file":  "src/pcre2_jit_test.c"
        }
    },
    {
        "deprecated":  false,
        "digest":  {
            "function_hash":  "136593279028409485865868554239388333420",
            "length":  2132
        },
        "id":  "CVE-2022-1586-8505e630",
        "signature_type":  "Function",
        "signature_version":  "v1",
        "source":  "https://github.com/pcre2project/pcre2/commit/3103b8f20a3b9944b177e812fde29fbfb8b90558",
        "target":  {
            "file":  "src/pcre2test.c",
            "function":  "display_properties"
        }
    },
    {
        "deprecated":  false,
        "digest":  {
            "line_hashes":  [
                "261031969686312999006512549674494490461",
                "168259855099571918664674207254596473730",
                "129755615421991772175711125174276683242",
                "141477962428344099817664558993047106632"
            ],
            "threshold":  0.9
        },
        "id":  "CVE-2022-1586-b26c3441",
        "signature_type":  "Line",
        "signature_version":  "v1",
        "source":  "https://github.com/pcre2project/pcre2/commit/50a51cb7e67268e6ad417eb07c9de9bfea5cc55a",
        "target":  {
            "file":  "src/pcre2_jit_compile.c"
        }
    },
    {
        "deprecated":  false,
        "digest":  {
            "line_hashes":  [
                "284991208664132423429566079959482933300",
                "59663981944089027375129892030352113302",
                "215502009414250523089328794008073975091",
                "66628541543409450441890529484581639807"
            ],
            "threshold":  0.9
        },
        "id":  "CVE-2022-1586-ec8883ab",
        "signature_type":  "Line",
        "signature_version":  "v1",
        "source":  "https://github.com/pcre2project/pcre2/commit/3103b8f20a3b9944b177e812fde29fbfb8b90558",
        "target":  {
            "file":  "src/pcre2test.c"
        }
    }
]

vanir_signatures_modified

"2026-08-12T12:59:11Z"