phpMyAdmin ShapeFile up to 4.0.1 SHP File loadFromFile infinite loop

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.8$0-$5k2.08

Summaryinfo

A vulnerability was found in phpMyAdmin ShapeFile up to 4.0.1. It has been rated as problematic. The affected element is the function ShapeRecord::loadFromFile of the component SHP File Handler. Performing a manipulation results in infinite loop. This vulnerability is reported as CVE-2026-121261. The attack is possible to be carried out remotely. Moreover, an exploit is present. The vendor was contacted early about this disclosure but did not respond in any way.

Detailsinfo

A vulnerability classified as problematic has been found in phpMyAdmin ShapeFile up to 4.0.1. This affects the function ShapeRecord::loadFromFile of the component SHP File Handler. The manipulation with an unknown input leads to a infinite loop vulnerability. CWE is classifying the issue as CWE-835. The product contains an iteration or loop with an exit condition that cannot be reached, i.e., an infinite loop. This is going to have an impact on availability.

The bug was discovered 10/07/2026. The weakness was disclosed by Ishan Oshada (ishanoshada). It is possible to read the advisory at gist.github.com. This vulnerability is uniquely identified as CVE-2026-121261. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. It demands that the victim is doing some kind of user interaction. Technical details and a public exploit are known. The attack technique deployed by this issue is T1499 according to MITRE ATT&CK.

A public exploit has been developed by Ishan Oshada (ishanoshada). The exploit is shared for download at gist.github.com. It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 28 days. During that time the estimated underground price was around . 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.

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

Productinfo

Type

Vendor

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.9
VulDB Meta Temp Score: 5.8

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔒
VulDB Reliability: 🔍

Researcher Base Score: 7.5
Researcher Vector: 🔒

CVSSv2info

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

Exploitinginfo

Class: Infinite loop
CWE: CWE-835 / CWE-404
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Access: Public
Status: Proof-of-Concept
Author: Ishan Oshada (ishanoshada)
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

10/07/2026 Vulnerability found
11/03/2026 +27 days Advisory disclosed
11/03/2026 +0 days VulDB entry created
11/03/2026 +0 days VulDB entry last update

Sourcesinfo

Advisory: gist.github.com
Researcher: Ishan Oshada (ishanoshada)
Status: Confirmed

CNA: VulDB
CVE: CVE-2026-121261 (🔒)

GCVE (CVE): GCVE-0-2026-121261
GCVE (VulDB): GCVE-100-430227
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 11/03/2026 11:53
Updated: 11/03/2026 16:51
Changes: 11/03/2026 11:53 (57), 11/03/2026 12:49 (9), 11/03/2026 16:48 (11), 11/03/2026 16:51 (3)
Complete: 🔍
Submitter: ishanoshada
Committer: ishanoshada
Cache ID: 216::103

Submitinfo

Accepted

  • Submit #1018488: phpMyAdmin ShapeFile 4.0.1 CWE-835 -Infinite Loop in ShapeRecord::loadFromFile (by ishanoshada)

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

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