Buffer Overflow in openbabel (CVE-2026-2704)
Summary
Vulnerability in openbabel (CVE-2026-2704). Risk of unauthorized operations or information disclosure. Exploitable via obabel. Mitigation: upgrade to 3.2.0 or later.
Original description
The description as published by the source.
A security vulnerability has been detected in Open Babel up to 3.1.1. The affected element is the function OpenBabel::transform3d::DescribeAsString of the file src/math/transform3d.cpp of the component CIF File Handler. The manipulation leads to out-of-bounds read. It is possible to initiate the attack remotely. The exploit has been disclosed publicly and may be used. Upgrading to version 3.2.0 is sufficient to fix this issue. The identifier of the patch is e23a224b8fd9d7c2a7cde9ef4ec6afb4c05aa08a. It is suggested to install a patch to address this issue.
Source: NIST National Vulnerability Database NVD GitHub Advisory
Auto-generated summary
Assembled by SecPulse from the source data (CVSS, CWE, affected versions) using templates — no AI involved. Check the original description and references below for exact details.
A vulnerability tracked as CVE-2026-2704 has been found in openbabel.
Attackers can target a specific entry point like obabel over the network to misuse the product.
Risk of unauthorized operations or information disclosure. CVSS score: 4.3/10.
What to do: upgrade openbabel to 3.2.0 or later.
If unsure, ask your IT team or search "openbabel CVE-2026-2704" on the vendor's site.
CVE-2026-2704 (openbabel) — CWE-119 / CVSS v3 4.3
Attack vector: local / unauthenticated
Attack surface: obabel / fuzzregresstest
Patched: 3.2.0 — apply immediately
Plan: 1) Audit SBOM/dependencies, 2) Stage→prod upgrade, 3) Add WAF/proxy monitoring on affected endpoints, 4) Hunt IOCs in logs.
Refs: see the GHSA / vendor advisory / patched release linked on this page.
A vulnerability (CWE-119) exists in openbabel. Attackers reach the vulnerable code path via obabel without authentication.
Check the vendor advisory for the affected versions of openbabel. Attack surface: obabel / fuzzregresstest.
Severity: Medium (CVSS 4.3/10). Risk of unauthorized operations or information disclosure.
Update to 3.2.0.
Until the patch is applied: disable the affected feature, apply WAF rules, or restrict access via network ACLs.
Search webserver/proxy logs for unusual request patterns matching this CVE's known IOCs. Run grep -r 'openbabel' . against your dependency files (package-lock.json, requirements.txt, go.sum) to find affected services.
Response actions
Concrete steps and command examples for SOC/SRE teams to execute in order
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1Identify exposure identify
grep -r 'openbabel' . | grep -v node_modulesリポジトリと本番環境の依存ファイル (package-lock.json / requirements.txt / go.sum / Gemfile.lock 等) で
openbabelを grep し、稼働しているサービス・バージョンを把握する。 -
2Apply patch patch
Upgrade openbabel to 3.2.0ステージング環境で 3.2.0 に上げて回帰テスト → 本番反映。回帰テストはアプリの主要ハッピーパスを含めること。
-
3Post-deployment verification verify
Confirm patched version is live in productionパッチ適用後、ステージングで PoC または同等の悪用パターンを再現して脆弱性が閉じたことを確認。本番ではアクセスログ・WAF でアラート再発が無いか継続監視。
Affected packages
Fix status by distribution
Fixed packages published by each distribution for this CVE
- Debian DEBIAN-CVE-2026-2704 openbabel
- Ubuntu UBUNTU-CVE-2026-2704 openbabel
References
- advisory github.com
- advisory vuldb.com
- advisory vuldb.com
- advisory nvd.nist.gov
- advisory github.com
- package github.com
- patch github.com
- patch github.com
- patch github.com
- report github.com
- report github.com
- report vuldb.com
- web vuldb.com
- web vuldb.com
- web vuldb.com
- web github.com
- web github.com