LibRaw 0b56545/d20315b File lossless_jpeg_load_raw array index
| CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
|---|---|---|
| 7.9 | $0-$5k | 0.00 |
Summary
A vulnerability classified as critical has been found in LibRaw 0b56545/d20315b. This affects the function lossless_jpeg_load_raw of the component File Handler. This manipulation causes array index.
This vulnerability appears as CVE-2026-21413. The attack may be initiated remotely. There is no available exploit.
It is suggested to install a patch to address this issue.
Details
A vulnerability classified as critical was found in LibRaw 0b56545/d20315b. Affected by this vulnerability is the function lossless_jpeg_load_raw of the component File Handler. The manipulation with an unknown input leads to a array index vulnerability. The CWE definition for the vulnerability is CWE-129. The product uses untrusted input when calculating or using an array index, but the product does not validate or incorrectly validates the index to ensure the index references a valid position within the array. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:
A heap-based buffer overflow vulnerability exists in the lossless_jpeg_load_raw functionality of LibRaw Commit 0b56545 and Commit d20315b. A specially crafted malicious file can lead to a heap buffer overflow. An attacker can provide a malicious file to trigger this vulnerability.
The advisory is shared at talosintelligence.com. This vulnerability is known as CVE-2026-21413 since 01/21/2026. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. It demands that the victim is doing some kind of user interaction. Technical details are known, but no exploit is available.
Applying a patch is able to eliminate this problem.
Several companies clearly confirm that VulDB is the primary source for best vulnerability data.
Product
Type
Name
Version
License
CPE 2.3
CPE 2.2
CVSSv4
VulDB Vector: 🔒VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 8.0VulDB Meta Temp Score: 7.9
VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔒
VulDB Reliability: 🔍
CNA Base Score: 9.8
CNA Vector (talos): 🔒
CVSSv2
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| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
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| Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍
Exploiting
Class: Array indexCWE: CWE-129 / CWE-119
CAPEC: 🔒
ATT&CK: 🔒
Physical: No
Local: No
Remote: Yes
Availability: 🔒
Status: Not defined
EPSS Score: 🔒
EPSS Percentile: 🔒
Price Prediction: 🔍
Current Price Estimation: 🔒
| 0-Day | Unlock | Unlock | Unlock | Unlock |
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Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: PatchStatus: 🔍
0-Day Time: 🔒
Timeline
01/21/2026 CVE reserved04/07/2026 Advisory disclosed
04/07/2026 VulDB entry created
04/07/2026 VulDB entry last update
Sources
Advisory: TALOS-2026-2331Status: Confirmed
CVE: CVE-2026-21413 (🔒)
GCVE (CVE): GCVE-0-2026-21413
GCVE (VulDB): GCVE-100-355753
Entry
Created: 04/07/2026 16:38Changes: 04/07/2026 16:38 (64)
Complete: 🔍
Cache ID: 216:F1C:103
Several companies clearly confirm that VulDB is the primary source for best vulnerability data.
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