{"id":"CVE-2026-116275","kind":"vulnerability","aliases":["CVE-2026-116275"],"related":[],"title":"AllenNLP: config class-name parsing lets remote input inject code","description":"A vulnerability was found in AllenAI AllenNLP up to 2.10.1. This impacts the function Registrable.resolve_class_name of the file allennlp/common/registrable.py of the component Registrable Configuration Machinery. Performing a manipulation of the argument Type results in code injection. The attack may be initiated remotely. The exploit has been made public and could be used. The vendor was contacted early about this disclosure but did not respond in any way. This vulnerability only affects products that are no longer supported by the maintainer.","summary":"AllenNLP up to 2.10.1 passes a user-supplied type argument into Registrable.resolve_class_name without validation, so the flaw allows code injection. The sources say a public exploit exists and an attacker can trigger it remotely.","severity":"high","cvss":7.5,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["allennlp","nlp-pipelines","package","python"],"not_affected_if":["not-using-allennlp","trusted-configs-only"],"how_to_check":"- Run `pip show allennlp` and compare the version with `2.10.1`.\n- Search your dependency files (requirements.txt, pyproject.toml, poetry.lock) for `allennlp`.","fix":"- No fixed release is named in the sources.\n- The sources say the maintainer no longer supports affected releases, so plan to remove AllenNLP or move to a supported replacement.","status":"open","published_at":"2026-10-26T14:16:35+00:00","first_seen_at":"2026-10-26T14:30:36+00:00","triaged_at":"2026-10-26T14:32:29+00:00","updated_at":"2026-10-26T14:32:29+00:00","category":"package","confidence":0.7,"triage":{"at":"2026-10-26T14:32:29Z","model":"claude-haiku-5-5","output":{"fix":"- No fixed release is named in the sources.\n- The sources say the maintainer no longer supports affected releases, so plan to remove AllenNLP or move to a supported replacement.","reach":"internet","title":"AllenNLP: config class-name parsing lets remote input inject code","impact":"high","summary":"AllenNLP up to 2.10.1 passes a user-supplied type argument into Registrable.resolve_class_name without validation, so the flaw allows code injection. The sources say a public exploit exists and an attacker can trigger it remotely.","category":"package","nicknames":[],"who_cares":["allennlp","python","nlp-pipelines"],"confidence":0.7,"needs_auth":"unknown","worst_case":"Remote code injection into the Python process running AllenNLP","analyst_note":"Find a fixed release or fork and confirm the exact trigger path in allennlp/common/registrable.py via the NVD link and the upstream repository.","how_to_check":"- Run `pip show allennlp` and compare the version with `2.10.1`.\n- Search your dependency files (requirements.txt, pyproject.toml, poetry.lock) for `allennlp`.","needs_analyst":true,"not_affected_if":["not-using-allennlp","trusted-configs-only"],"who_is_affected":"Teams that run AllenNLP 2.10.1 or earlier in a service that accepts configuration or type names from outside input can be exposed. The flaw sits in the registrable configuration machinery, so an application that only uses AllenNLP with trusted, fixed configs is less exposed. Teams not using AllenNLP can skip it.","user_interaction":"unknown","needs_special_setup":"unknown","severity_if_unknown":"high"},"cost_usd":0.001167,"input_tokens":3378,"output_tokens":1659,"severity_before":"high"},"analyst_status":null,"analyst_note":null,"search":"'-116275':14A,17A '-2026':13A,16A '2.10.1':27B,70C 'affect':133C 'allenai':66C 'allennlp':1A,18B,24B,67C 'allennlp/common/registrable.py':81C 'allow':44B 'argument':34B,93C 'attack':56B,100C 'class':4A,37B,76C 'class-nam':3A 'code':11A,45B,97C 'compon':84C 'config':2A 'configur':86C 'contact':118C 'could':112C 'cve':12A,15A 'disclosur':122C 'earli':119C 'exist':53B 'exploit':52B,106C 'file':80C 'flaw':43B 'found':64C 'function':74C 'impact':72C 'initi':103C 'inject':10A,46B,98C 'input':9A 'let':7A 'longer':138C 'machineri':87C 'made':109C 'maintain':142C 'manipul':90C 'may':101C 'name':5A,38B,77C 'nlp':20B 'nlp-pipelin':19B 'packag':22B 'pars':6A 'pass':28B 'perform':88C 'pipelin':21B 'product':134C 'public':51B,110C 'python':23B 'registr':85C 'registrable.resolve':36B,75C 'remot':8A,60B,104C 'respond':126C 'result':95C 'say':49B 'sourc':48B 'suppli':32B 'support':139C 'trigger':58B 'type':33B,94C 'use':114C 'user':31B 'user-suppli':30B 'valid':40B 'vendor':116C 'vulner':62C,131C 'way':129C 'without':39B","nicknames":[],"mitigations":[],"who_affected":"Teams that run AllenNLP 2.10.1 or earlier in a service that accepts configuration or type names from outside input can be exposed. The flaw sits in the registrable configuration machinery, so an application that only uses AllenNLP with trusted, fixed configs is less exposed. Teams not using AllenNLP can skip it.","tier":"B","verified":{},"analyst_revisit_at":null,"first_public_at":"2026-10-26T14:16:35+00:00","kev":null,"cvss_vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","cvss_by":"cna@vuldb.com","poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-116275","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-116275","severity":null,"published_at":"2026-10-26T14:16:35+00:00","modified_at":"2026-10-26T14:16:35+00:00","first_seen_at":"2026-10-26T14:30:36+00:00","fetched_at":"2026-10-26T14:30:36+00:00","note":null}],"documents":[],"notice":"Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai"}