GHSA-38r9-g25v-vcvr · 深刻度: medium — WWW::Mechanize::Cached versions before 2.00 for Perl deserialize cached HTTP responses from a...
WWW::Mechanize::Cached versions before 2.00 for Perl deserialize cached HTTP responses from a world-writable on-disk cache, enabling local response forgery and code execution. With no explicit cache backend, WWW::Mechanize::Cached constructs a default Cache::FileCache under /tmp/FileCache without overriding the backend's documented directory_umask of 000, so the cache root and its subdirectories are created mode 0777 with no sticky bit. Cache entries are named by sha1_hex of the request and read back through Storable::thaw on the next cache hit. A local attacker with write access to the cache tree can replace a victim's cache entry for a known URL with an arbitrary frozen HTTP::Response blob, causing the victim's next get() of that URL to return attacker controlled response bytes. Because the bytes are passed to Storable::thaw, a victim process that has loaded any class with a side-effectful STORABLE_thaw, DESTROY, or overload hook can be escalated to arbitrary code execution.
総合評価: CVE-2026-8612 は低リスク(26.8/100)。CVSS 深刻度は中。悪用される可能性が高い(EPSS 0.05%、16 パーセンタイル) 推奨対応: 悪用情報と EPSS の推移を監視し、必要に応じて優先度を見直してください。
リスクは変動します。再評価に基づき、本ページの表示内容を更新しています。
EPSS は日次で悪用されやすさの相対度合いを推定します。パーセンタイルは採点済み CVE の中での相対位置(高いほど相対的に深刻)を示します。
| # | 日付 | 旧 EPSS スコア | 新 EPSS スコア | Δ(新 − 旧) |
|---|---|---|---|---|
| 1 | 2026-05-21 | 0.03% | 0.05% | +0.02% |
| 2 | 2026-05-16 | 0.05% | 0.03% | -0.02% |
| 3 | 2026-05-15 | — | 0.05% | — |
EPSS の全履歴 (全 3 件)
この CVE の CVSS 指標。
| ベーススコア | バージョン | 深刻度 | ベクトル | 悪用しやすさ | 影響 | スコアの出典 |
|---|---|---|---|---|---|---|
| 5.3 | 3.1 | MEDIUM |
|
1.8 | 3.4 | 134c704f-9b21-4f2e-91b3-4a467353bcc0 |
GHSA-38r9-g25v-vcvr · 深刻度: medium — WWW::Mechanize::Cached versions before 2.00 for Perl deserialize cached HTTP responses from a...
| vendor | priority | summary | link |
|---|---|---|---|
suse
|
high | CVE-2026-8612 severity important: SUSE including 1 source package names (perl-WWW-Mechanize), 15 product×package rows across 15 product lines (SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS, SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS, … (15 product lines)): Known Not Affected 15. | https://www.suse.com/security/cve/CVE-2026-8612/ |
| ベンダー | 製品 | バージョン | 生の CPE |
|---|---|---|---|
| oalders | www::mechanize::cached | < 2.00 | cpe:2.3:a:oalders:www\:\:mechanize\:\:cached:*:*:*:*:*:perl:*:* |
| URL | タグ |
|---|---|
| https://github.com/libwww-perl/WWW-Mechanize-Cached/commit/b821647deeedf83490ebc1db91d959d942300ce0.patch | Patch |
| https://github.com/libwww-perl/WWW-Mechanize-Cached/pull/36 | Issue Tracking Patch |
| https://metacpan.org/release/OALDERS/WWW-Mechanize-Cached-2.00/changes | Release Notes |
| http://www.openwall.com/lists/oss-security/2026/05/15/1 | Mailing List Third Party Advisory |