pyyaml 関連製品全体の CVE とセキュリティ脆弱性情報を集約し、CVSS、EPSS、公開日、脆弱性情報データを掲載しています。
一般的な弱点パターンには vendor risk input validation and バッファオーバーフロー があり、vendor surface production workloads and vendor surface software deployment の利用場面で vendor impact unexpected behavior、アプリケーションクラッシュ, and vendor impact memory corruption などのリスクが生じる可能性があります。
掲載データは公開脆弱性情報とセキュリティ公告に基づき、過去の暴露面と修補優先度の評価に利用できます。
| CVE | 概要 | ソース | CVSS 最大値 | EPSS（%） | 公開 | 更新 |
|---|---|---|---|---|---|---|
| CVE-2020-14343 | A vulnerability was discovered in the PyYAML library in versions before 5.4, where it is susceptible to arbitrary code execution when it processes untrusted YAML files through the full_load method or with the FullLoader loader. Applications that use the library to process untrusted input may be vulnerable to this flaw. This flaw allows an attacker to execute arbitrary code on the system by abusing the python/object/new constructor. This flaw is due to an incomplete fix for CVE-2020-1747. | [email protected] | 9.8 | 5.98% | 2021-02-09 | 2024-11-21 |
| CVE-2020-1747 | A vulnerability was discovered in the PyYAML library in versions before 5.3.1, where it is susceptible to arbitrary code execution when it processes untrusted YAML files through the full_load method or with the FullLoader loader. Applications that use the library to process untrusted input may be vulnerable to this flaw. An attacker could use this flaw to execute arbitrary code on the system by abusing the python/object/new constructor. | [email protected] | 9.8 | 5.30% | 2020-03-24 | 2024-11-21 |
| CVE-2019-20477 | PyYAML 5.1 through 5.1.2 has insufficient restrictions on the load and load_all functions because of a class deserialization issue, e.g., Popen is a class in the subprocess module. NOTE: this issue exists because of an incomplete fix for CVE-2017-18342. | [email protected] | 9.8 | 4.99% | 2020-02-19 | 2024-11-21 |
| CVE-2017-18342 | In PyYAML before 5.1, the yaml.load() API could execute arbitrary code if used with untrusted data. The load() function has been deprecated in version 5.1 and the 'UnsafeLoader' has been introduced for backward compatibility with the function. | [email protected] | 9.8 | 6.08% | 2018-06-27 | 2024-11-21 |
| CVE-2014-9130 | scanner.c in LibYAML 0.1.5 and 0.1.6, as used in the YAML-LibYAML (aka YAML-XS) module for Perl, allows context-dependent attackers to cause a denial of service (assertion failure and crash) via vectors involving line-wrapping. | [email protected] | 5.0 | 13.20% | 2014-12-08 | 2026-05-06 |
| CVE-2014-2525 | Heap-based buffer overflow in the yaml_parser_scan_uri_escapes function in LibYAML before 0.1.6 allows context-dependent attackers to execute arbitrary code via a long sequence of percent-encoded characters in a URI in a YAML file. | [email protected] | 6.8 | 9.19% | 2014-03-28 | 2026-05-06 |
| CVE-2013-6393 | The yaml_parser_scan_tag_uri function in scanner.c in LibYAML before 0.1.5 performs an incorrect cast, which allows remote attackers to cause a denial of service (application crash) and possibly execute arbitrary code via crafted tags in a YAML document, which triggers a heap-based buffer overflow. | [email protected] | 6.8 | 9.23% | 2014-02-06 | 2026-04-29 |