senapati484 iopress up to 1.0.4 Chunked-Transfer-Encoding Http Request Parser out-of-bounds

CVSS Meta Temp Score
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CTI Interest Score
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7.0$0-$5k0.93+

Summaryinfo

A vulnerability identified as critical has been detected in senapati484 iopress up to 1.0.4. This vulnerability affects unknown code of the component Chunked-Transfer-Encoding Http Request Parser. This manipulation causes out-of-bounds. This vulnerability is registered as CVE-2026-65833. Remote exploitation of the attack is possible. No exploit is available. You should upgrade the affected component.

Detailsinfo

A vulnerability has been found in senapati484 iopress up to 1.0.4 and classified as critical. Affected by this vulnerability is some unknown functionality of the component Chunked-Transfer-Encoding Http Request Parser. The manipulation with an unknown input leads to a out-of-bounds vulnerability. The CWE definition for the vulnerability is CWE-125. The product reads data past the end, or before the beginning, of the intended buffer. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

iopress is a native HTTP server for Node.js with platform-specific async I/O. Prior to version 1.0.5, the chunked-transfer-encoding HTTP request parser in @iopress/core reads past the end of the input buffer when a request declares a chunk size larger than the body actually received. This results in a heap-buffer-over-read. This issue has been patched in version 1.0.5.

It is possible to read the advisory at github.com. This vulnerability is known as CVE-2026-65833 since 07/23/2026. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. The technical details are unknown and an exploit is not publicly available.

Upgrading to version 1.0.5 eliminates this vulnerability.

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Vendor

Name

Version

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒

CVSSv3info

VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 7.0

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
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: Out-of-bounds
CWE: CWE-125 / CWE-119
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: iopress 1.0.5

Timelineinfo

07/23/2026 CVE reserved
11/11/2026 +111 days Advisory disclosed
11/11/2026 +0 days VulDB entry created
11/11/2026 +0 days VulDB entry last update

Sourcesinfo

Product: github.com

Advisory: github.com
Status: Confirmed

CNA: GitHub_M
CVE: CVE-2026-65833 (🔒)

GCVE (CVE): GCVE-0-2026-65833
GCVE (VulDB): GCVE-100-435955

Entryinfo

Created: 11/11/2026 19:51
Changes: 11/11/2026 19:51 (67)
Complete: 🔍
Cache ID: 216::103

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