How severe is CVE-2024-12704?

CVE-2024-12704 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2024-12704 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (51st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2024-12704?

CVE-2024-12704 affects Llamaindex. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2024-12704?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2024-12704 have an EU (EUVD) identifier?

Yes. CVE-2024-12704 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-7006.

When was CVE-2024-12704 published?

CVE-2024-12704 was published on 2025-03-20 and last updated on 2026-06-17.

CVE-2024-12704

CVE-2024-12704 is a high-severity vulnerability in Llamaindex with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-835.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 1% (51st percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-7006
Weakness: CWE-835
Affected product: Llamaindex
Published: 2025-03-20
Last modified: 2026-06-17

Description

A vulnerability in the LangChainLLM class of the run-llama/llama_index repository, version v0.12.5, allows for a Denial of Service (DoS) attack. The stream_complete method executes the llm using a thread and retrieves the result via the get_response_gen method of the StreamingGeneratorCallbackHandler class. If the thread terminates abnormally before the _llm.predict is executed, there is no exception handling for this case, leading to an infinite loop in the get_response_gen function. This can be triggered by providing an input of an incorrect type, causing the thread to terminate and the process to continue running indefinitely.

Frequently asked questions

What is CVE-2024-12704?: A vulnerability in the LangChainLLM class of the run-llama/llama_index repository, version v0.12.5, allows for a Denial of Service (DoS) attack. The stream_complete method executes the llm using a thread and retrieves the result via the get_response_gen method of the StreamingGeneratorCallbackHandler class. If the thread terminates abnormally before the _llm.predict is executed, there is no exception handling for this case, leading to an infinite loop in the get_response_gen function. This can be triggered by providing an input of an incorrect type, causing the thread to terminate and the process to continue running indefinitely.
How severe is CVE-2024-12704?: CVE-2024-12704 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2024-12704 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (51st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2024-12704?: CVE-2024-12704 affects Llamaindex. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2024-12704?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2024-12704 have an EU (EUVD) identifier?: Yes. CVE-2024-12704 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-7006.
When was CVE-2024-12704 published?: CVE-2024-12704 was published on 2025-03-20 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:llamaindex:llamaindex:0.12.5:*:*:*:*:*:*:*

More vulnerabilities in Llamaindex

CVE-2025-1793 — Critical (CVSS 9.8): Multiple vector store integrations in run-llama/llama_index version v0.12.21 have SQL injection vulnerabilities. These…
CVE-2025-1750 — Critical (CVSS 9.8): An SQL injection vulnerability exists in the delete function of DuckDBVectorStore in run-llama/llama_index version…
CVE-2024-12909 — Critical (CVSS 9.8): A vulnerability in the FinanceChatLlamaPack of the run-llama/llama_index repository, versions up to v0.12.3, allows for…
CVE-2024-11958 — Critical (CVSS 9.8): A SQL injection vulnerability exists in the `duckdb_retriever` component of the run-llama/llama_index repository,…
CVE-2024-3271 — Critical (CVSS 9.8): A command injection vulnerability exists in the run-llama/llama_index repository, specifically within the safe_eval…
CVE-2024-23751 — Critical (CVSS 9.8): LlamaIndex (aka llama_index) through 0.9.34 allows SQL injection via the Text-to-SQL feature in NLSQLTableQueryEngine,…

All CVEs affecting Llamaindex →

Other CWE-835 (Loop with Unreachable Exit Condition (Infinite Loop)) vulnerabilities

CVE-2026-24816 — Critical (CVSS 10.0): Loop with Unreachable Exit Condition ('Infinite Loop') vulnerability in datavane tis…
CVE-2018-20784 — Critical (CVSS 9.8): In the Linux kernel before 4.20.2, kernel/sched/fair.c mishandles leaf cfs_rq's, which allows attackers to cause a…
CVE-2017-12997 — Critical (CVSS 9.8): The LLDP parser in tcpdump before 4.9.2 could enter an infinite loop due to a bug in…
CVE-2017-12995 — Critical (CVSS 9.8): The DNS parser in tcpdump before 4.9.2 could enter an infinite loop due to a bug in print-domain.c:ns_print().
CVE-2017-12990 — Critical (CVSS 9.8): The ISAKMP parser in tcpdump before 4.9.2 could enter an infinite loop due to bugs in print-isakmp.c, several functions.
CVE-2026-31448 — Critical (CVSS 9.4): In the Linux kernel, the following vulnerability has been resolved: ext4: avoid infinite loops caused by residual…

Browse all CWE-835 (Loop with Unreachable Exit Condition (Infinite Loop)) vulnerabilities →