GNU Bison allows for an execution of an arbitrary program during HTML report generation due to improper handling of grammar-defined configuration variables. A grammar file can override the executable…
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摘要
GNU Bison allows for an execution of an arbitrary program during HTML report generation due to improper handling of grammar-defined configuration variables. A grammar file can override the executable used for the XML‑to‑HTML transformation step via %define tool.xsltproc, which is accepted without restriction and passed directly to execvp(). When running bison --html on a attacker-provided grammar, this behavior allows execution of an arbitrary program with the privileges of the Bison process.…
中文摘要建设中，暂以英文摘要呈现（DR-003 v2）。
深度研判 · 自动通道
该漏洞尚未生成深度研判报告（DR-003 v2 AI pipeline 建设中）。
Lint 边界警告 (3)
以下是本次研判 lint 阶段发现的非阻塞性警告（如引用 URL 未在白名单内）。这些不影响漏洞条目可用性，仅为透明度披露（参 DR-002）。
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REF_URL_NOT_ALLOWLISTEDurl not in allowlist: https://cert.pl/en/posts/2026/07/CVE-2026-56389 -
REF_URL_NOT_ALLOWLISTEDurl not in allowlist: https://cgit.git.savannah.gnu.org/cgit/bison.git/ -
REF_URL_NOT_ALLOWLISTEDurl not in allowlist: https://cgit.git.savannah.gnu.org/cgit/bison.git/commit/?id=3169c1e7a2c6acc4c59dfcf8b089896d6881925b
数据来源
- NVD DATABASE
原始链接
- https://cert.pl/en/posts/2026/07/CVE-2026-56389
- https://cgit.git.savannah.gnu.org/cgit/bison.git/
- https://cgit.git.savannah.gnu.org/cgit/bison.git/commit/?id=3169c1e7a2c6acc4c59dfcf8b089896d6881925b
时间线
- nvd_ingest NVD