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CVE-2026-2903
3.3 LOW
- CVSS version (CVSS): 3.1
- Attack Vector (AV): Local (L)
- Attack Complexity (AC): Low (L)
- Privileges Required (PR): Low (L)
- User Interaction (UI): None (N)
- Scope (S): Unchanged (U)
- Confidentiality (C): None (N)
- Integrity (I): None (N)
- Availability (A): Low (L)
- Exploit Code Maturity (E): Proof-of-Concept (P)
- Remediation Level (RL): Official Fix (O)
- Report Confidence (RC): Confirmed (C)
- Modified Attack Vector (MAV): Local (L)
- Modified Attack Complexity (MAC): Low (L)
- Modified Privileges Required (MPR): Low (L)
- Modified User Interaction (MUI): None (N)
- Modified Confidentiality (MC): None (N)
- Modified Scope (MS): Unchanged (U)
- Modified Integrity (MI): None (N)
- Modified Availability (MA): Low (L)
by @LeSuisse Activity log
- Created suggestion
- @LeSuisse ignored package vimPlugins.nvim-treesitter-parsers.re2c
- @LeSuisse accepted
- @LeSuisse published on GitHub
skvadrik re2c ast.cc check_and_merge_special_rules null pointer dereference
A flaw has been found in skvadrik re2c up to 4.4. Impacted is the function check_and_merge_special_rules of the file src/parse/ast.cc. This manipulation causes null pointer dereference. The attack can only be executed locally. The exploit has been published and may be used. Patch name: febeb977936f9519a25d9fbd10ff8256358cdb97. It is suggested to install a patch to address this issue.
References
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VDB-347210 | skvadrik re2c ast.cc check_and_merge_special_rules null pointer dereference technical-descriptionvdb-entry
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Submit #755030 | skvadrik re2c 04f1424 NULL Pointer Dereference third-party-advisory
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https://github.com/skvadrik/re2c/issues/571 issue-tracking
Affected products
re2c
- ==4.2
- ==4.0
- ==4.1
- ==4.4
- ==4.3
Matching in nixpkgs
Ignored packages (1)
pkgs.vimPlugins.nvim-treesitter-parsers.re2c
None
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nixos-unstable 0.0.0+rev=c18a3c2
- nixpkgs-unstable 0.0.0+rev=c18a3c2
- nixos-unstable-small 0.0.0+rev=c18a3c2
Package maintainers
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@thoughtpolice Austin Seipp <aseipp@pobox.com>