Decepticon is an autonomous hacking agent for red teams. Versions prior to 1.1.17 wrap web crawl results — the output of agent reconnaissance against target services — into LLM messages without neutralizing ChatML special-token literals. Under the BYOK (Bring Your Own Key) deployment model, users configure their own LLM credentials to any OpenAI-compatible endpoint. Most open-source and self-deployed model providers (vLLM, SGLang, Ollama, LM Studio, text-generation-webui, etc.) do not filter special-token literals from user content in their default configurations. Those literals are parsed into structural role-boundary token IDs, meaning an attacker string planted in a target web page forges a new operator turn the model treats as authoritative, bypassing Decepticon's agent guardrails and resulting in arbitrary command execution inside the Kali Linux sandbox. Version 1.1.17 patches the issue.
CVE-2026-61732
This critical-severity CVE scores 10.0 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 1.2% (67th percentile of EPSS-scored CVEs). GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).
- High severity, but no confirmed exploitation yet
A fix is available — apply it.
- CVSS v3
- 10.0
- EG Score
- 10.0CRITICALmedium confidence
- EG Risk
- 50EG Risk 50/100CISA SSVC
EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).
How it’s computedSeverity100% × 45%Exploitation1% × 40%Automatability30% × 15%CISA SSVC: Track at low or medium mission impact; Track* or Attend at high (mission-essential systems).Action: A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high. - EPSS PROB
- 1.2%
- EPSS %ILE
- 67th
- KEV
- Not listed
CISA SSVCTrack at low or medium mission impact; Track* or Attend at high (mission-essential systems).
A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.
Exploitation none (no KEV listing, exploit record or EPSS ≥ 50%) · Automatable unknown (not published for this CVE) · Technical impact total (CVSS ≥ 9.0). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table
Published
September 24, 2026
Last Modified
September 30, 2026
Advisory Details (2)
Auto-updated Sep 30, 2026Role-boundary forgery via ChatML special-token literals in web crawl output composed into LLM context · Advisory · BitterSecurity/Decepticon · GitHub
https://github.com/BitterSecurity/Decepticon/security/advisories/GHSA-g5f9-3xfg-p9mfcommit 79ee2aaf22f4 (BitterSecurity/Decepticon)
Fix landed in BitterSecurity/Decepticon commit 79ee2aaf22f4 — awaiting tagged release
https://github.com/BitterSecurity/Decepticon/commit/79ee2aaf22f4c36a5b1968f6ca3f8086b6e35b67Vendor Advisories for CVE-2026-61732(1)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
Affected Packages
(3 across 1 ecosystem)
PyPI(3)
| Package | Vulnerable range | Fix by version range | Dependents |
|---|---|---|---|
| decepticon | 1.1.0 ... 1.1.9 (17 versions) |
| — |
| decepticon-core | 1.1.10 ... 1.1.9 (15 versions) |
| — |
| decepticon-sdk | 1.1.10 ... 1.1.9 (15 versions) |
| — |
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 14× in last 7d / 21× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-10-05 03:34 UTCEG score recompute
- 2026-10-04 23:22 UTCEPSS rescore
- 2026-10-03 16:15 UTCEG score recompute
- 2026-10-03 14:26 UTCEPSS rescore
- 2026-10-02 18:12 UTCEG score recompute
- 2026-10-02 17:56 UTCEPSS rescore
- 2026-10-01 19:59 UTCEG score recompute
- 2026-10-01 19:50 UTCEPSS rescore
- 2026-09-30 17:33 UTCEG score recompute
- 2026-09-30 15:03 UTCEPSS rescore
- 2026-09-29 19:32 UTCEG score recompute
- 2026-09-29 01:49 UTCEG score recompute
- 2026-09-28 17:02 UTCEG score recompute
- 2026-09-28 13:51 UTCEPSS rescore
- 2026-09-27 14:26 UTCEG score recompute
- 2026-09-26 16:19 UTCEG score recompute
- 2026-09-26 15:59 UTCEPSS rescore
- 2026-09-26 03:02 UTCEG score recompute
- 2026-09-24 18:35 UTCEG score recompute
- 2026-09-24 17:47 UTCEG score recompute
- 2026-09-24 17:46 UTCMITRE cvelistV5first tracked
Related CVEs(same CWE)
Frequently asked(5)
What is CVE-2026-61732?
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Is CVE-2026-61732 actively exploited?
What is the CVSS score of CVE-2026-61732?
How do I remediate CVE-2026-61732?
Dependency Blast Radius
See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-61732
Is Your Infrastructure Affected by CVE-2026-61732?
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