CVE-2026-56389

A flaw was found in GNU Bison. During HTML report generation, the software improperly handles grammar-defined configuration variables. An attacker can provide a specially crafted grammar file that overrides the executable used for XML-to-HTML transformation. This allows for the execution of an...

Arbitrary Output Location Change in GNU Bison

...

Arbitrary Command Execution in GNU Bison

...

CVE-2026-56390

A flaw was found in GNU Bison. When processing attacker-supplied grammar, the software improperly handles grammar-defined output paths. This allows an attacker to use directives such as %output and %header to specify arbitrary file paths. Consequently, generated files can be directed to any...

SUSE CVE-2026-56389

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...

SUSE CVE-2026-56390

GNU Bison improperly handles grammar-defined output paths. Grammar directives such as %output and %header allow specifying file paths, which are accepted without restriction and override caller-supplied output options. When processing attacker-supplied grammar, this behavior allows directing...

CVE-2026-56390

GNU Bison improperly handles grammar‑defined output paths. Grammar directives such as %output and %header allow specifying file paths, which are accepted without restriction and override caller‑supplied output options. When processing attacker-supplied grammar, this behavior allows directing...

CVE-2026-56390

GNU Bison improperly handles grammar‑defined output paths. Grammar directives such as %output and %header allow specifying file paths, which are accepted without restriction and override caller‑supplied output options. When processing attacker-supplied grammar, this behavior allows directing...

UBUNTU-CVE-2026-56390

GNU Bison improperly handles grammar‑defined output paths. Grammar directives such as %output and %header allow specifying file paths, which are accepted without restriction and override caller‑supplied output options. When processing attacker-supplied grammar, this behavior allows directing...

CVE-2026-56389

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...

UBUNTU-CVE-2026-56389

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...

CVE-2026-56390 Arbitrary Output Location Change in GNU Bison

GNU Bison improperly handles grammar‑defined output paths. Grammar directives such as %output and %header allow specifying file paths, which are accepted without restriction and override caller‑supplied output options. When processing attacker-supplied grammar, this behavior allows directing...

CVE-2026-56390

GNU Bison is affected by CVE-2026-56390 through grammar-defined output directives (%output, %header), which can accept unrestricted file paths and override caller-supplied output options. When processing attacker-supplied grammar, this allows writing generated files to arbitrary writable location...

CVE-2026-56390

GNU Bison improperly handles grammar‑defined output paths. Grammar directives such as %output and %header allow specifying file paths, which are accepted without restriction and override caller‑supplied output options. When processing attacker-supplied grammar, this behavior allows directing...

EUVD-2026-50277

GNU Bison improperly handles grammar‑defined output paths. Grammar directives such as %output and %header allow specifying file paths, which are accepted without restriction and override caller‑supplied output options. When processing attacker-supplied grammar, this behavior allows directing...

CVE-2026-56390

GNU Bison improperly handles grammar‑defined output paths. Grammar directives such as %output and %header allow specifying file paths, which are accepted without restriction and override caller‑supplied output options. When processing attacker-supplied grammar, this behavior allows directing...

CVE-2026-56389

GNU Bison (a parser generator) is affected by an arbitrary command execution flaw during HTML report generation . A crafted 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...

EUVD-2026-50276

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...

CVE-2026-56389 Arbitrary Command Execution in GNU Bison

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...

CVE-2026-56389

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...