simular-ai Agent-S up to 0.3.2 OCR HTTP API ocr_server.py ImageData img_bytes resource consumption

CVSS Meta Temp Score
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CTI Interest Score
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4.8$0-$5k1.43+

Summaryinfo

A vulnerability has been found in simular-ai Agent-S up to 0.3.2 and classified as problematic. Affected by this issue is the function ImageData of the file gui_agents/s1/utils/ocr_server.py of the component OCR HTTP API. The manipulation of the argument img_bytes leads to resource consumption. This vulnerability is referenced as CVE-2026-84886. Remote exploitation of the attack is possible. Furthermore, an exploit is available. The vendor was contacted early about this disclosure but did not respond in any way.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in simular-ai Agent-S up to 0.3.2. This issue affects the function ImageData of the file gui_agents/s1/utils/ocr_server.py of the component OCR HTTP API. The manipulation of the argument img_bytes with an unknown input leads to a resource consumption vulnerability. Using CWE to declare the problem leads to CWE-400. The product does not properly control the allocation and maintenance of a limited resource, thereby enabling an actor to influence the amount of resources consumed, eventually leading to the exhaustion of available resources. Impacted is availability.

It is possible to read the advisory at github.com. The identification of this vulnerability is CVE-2026-84886. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details as well as a public exploit are known. The attack technique deployed by this issue is T1499 according to MITRE ATT&CK.

The exploit is available at github.com. It is declared as proof-of-concept. The vendor was contacted early about this disclosure but did not respond in any way.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Type

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 4.8

VulDB Base Score: 5.3
VulDB Temp Score: 4.8
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Resource consumption
CWE: CWE-400 / CWE-404
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Access: Public
Status: Proof-of-Concept
Download: 🔒
Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

09/02/2026 Advisory disclosed
09/02/2026 +0 days VulDB entry created
09/02/2026 +0 days VulDB entry last update

Sourcesinfo

Advisory: github.com
Status: Not defined

CVE: CVE-2026-84886 (🔒)
GCVE (CVE): GCVE-0-2026-84886
GCVE (VulDB): GCVE-100-398135
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 09/02/2026 16:21
Changes: 09/02/2026 16:21 (59)
Complete: 🔍
Submitter: hackerguopeng
Cache ID: 216::103

Submitinfo

Accepted

  • Submit #886443: Simular AI Agent-S 0.3.2 Denial of Service (by hackerguopeng)

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