CVE-2026-10783: Weak Hash in Gradio Audio Cache – Risk Assessment & Patching Guide

Technical summary

CVE-2026-10783 involves the save_audio_to_cache function within Gradio's Audio Cache Key Handler component. The vulnerability stems from reliance on weak hash functions (CWE-327: Use of a Broken or Risky Cryptographic Algorithm, CWE-328: Use of Insufficiently Random Values) to secure cached audio data. An authenticated local attacker can manipulate the caching mechanism to bypass weak hash protections, potentially reading cached audio content. The CVSS 3.1 vector (AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N) reflects local-only attack surface, high complexity, low privileges required, and confidentiality impact limited to the attacked system.

Business impact

For organizations deploying Gradio 6.14.0 in multi-tenant or shared environments, this vulnerability creates a confidentiality risk around cached audio files. An insider with local system access could theoretically extract sensitive audio data (transcripts, recordings, etc.) if the weak hash allows cache key prediction. The impact is contained—no integrity compromise, no denial of service, no remote exploitation—but sensitive audio workloads warrant attention. Most standard Gradio deployments with proper access controls face minimal risk.

Affected systems

Gradio version 6.14.0 is confirmed affected. The vulnerability is specific to the Audio Cache Key Handler's save_audio_to_cache function. Organizations running earlier or later versions should verify their patch status against the vendor advisory. Gradio users in isolated development environments or single-user deployments face lower practical risk than shared cloud or enterprise instances.

Exploitability

Exploitation requires local system access and valid user credentials (low privilege level sufficient). Attack complexity is explicitly high, meaning an attacker must clear multiple technical hurdles or possess specialized knowledge of Gradio's caching internals. A public exploit has been released, but the high complexity barrier means opportunistic or unskilled attackers are unlikely to succeed. No remote exploitation path exists.

Remediation

Apply patch 13394 to upgrade from Gradio 6.14.0 to a patched version. Verify the exact target version in the official Gradio release notes or security advisory. As an interim measure, restrict local system access to trusted users only and monitor for suspicious access patterns to audio cache directories.

Patch guidance

Obtain patch 13394 from the Gradio project's official release channel or security advisory. Test the patched version in a non-production environment first, particularly if you rely on custom audio processing workflows. The patch likely replaces weak hash functions with cryptographically strong alternatives (SHA-256 or similar). Verify compatibility with your Gradio extensions and downstream applications before rolling out production deployments.

Detection guidance

Monitor filesystem access to Gradio's cache directories (typically ~/.cache/gradio or equivalent). Alert on repeated failed authentication attempts followed by privileged cache access. Log calls to save_audio_to_cache and review for anomalous patterns. Network-level detection is not applicable due to the local-only nature of this vulnerability. Endpoint detection and response (EDR) tools can flag unusual processes attempting to manipulate cache keys or enumerate cached files.

Why prioritize this

This vulnerability scores LOW (CVSS 2.5) and is not listed on the CISA Known Exploited Vulnerabilities catalog. Prioritize it below critical or high-severity issues but do not ignore it in multi-user or shared environments. Organizations with Gradio deployments handling sensitive audio should treat this as medium priority; others may defer patching to a standard maintenance cycle. The high attack complexity significantly reduces real-world risk despite public exploit availability.

Risk score, explained

The CVSS 3.1 score of 2.5 (LOW) reflects multiple mitigating factors: local-only attack vector, high attack complexity, requirement for valid user credentials, and impact limited to confidentiality on the attacked system. No integrity or availability impact exists. In isolation, this is a modest vulnerability; in the context of a defense-in-depth strategy, it becomes relevant only if access controls or monitoring gaps exist.

Frequently asked questions