CVE-2026-35172 Vulnerability Analysis & Exploit Details

CVE-2026-35172
Vulnerability Scoring

7.5

/10

Very High Risk

Highly exploitable, CVE-2026-35172 poses a critical security risk that could lead to severe breaches.

Attack Complexity Details

Attack Complexity: Low
Exploits can be performed without significant complexity or special conditions.
Attack Vector: Network
Vulnerability is exploitable over a network without physical access.
Privileges Required: None
No privileges are required for exploitation.
Scope: Unchanged
Exploit remains within the originally vulnerable component.
User Interaction: None
No user interaction is necessary for exploitation.

CVE-2026-35172 Details

Status: Modified

Last updated: 🕑 15 Jul 2026, 02:20 UTC
Originally published on: 🕗 06 Apr 2026, 20:16 UTC

Time between publication and last update: 99 days

CVSS Release: version 3

CVSS3 Source

security-advisories@github.com

CVSS3 Type

Secondary

CVSS3 Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

CVE-2026-35172 Vulnerability Summary

CVE-2026-35172: Distribution is a toolkit to pack, ship, store, and deliver container content. Prior to 3.1.0, distribution can restore read access in repo a after an explicit delete when storage.cache.blobdescriptor: redis and storage.delete.enabled: true are both enabled. The delete path clears the shared digest descriptor but leaves stale repo-scoped membership behind, so a later Stat or Get from repo b repopulates the shared descriptor and makes the deleted blob readable from repo a again. This vulnerability is fixed in 3.1.0.

Assessing the Risk of CVE-2026-35172

Access Complexity Graph

The exploitability of CVE-2026-35172 depends on two key factors: attack complexity (the level of effort required to execute an exploit) and privileges required (the access level an attacker needs).

Exploitability Analysis for CVE-2026-35172

With low attack complexity and no required privileges, CVE-2026-35172 is an easy target for cybercriminals. Organizations should prioritize immediate mitigation measures to prevent unauthorized access and data breaches.

Understanding AC and PR

A lower complexity and fewer privilege requirements make exploitation easier. Security teams should evaluate these aspects to determine the urgency of mitigation strategies, such as patch management and access control policies.

Attack Complexity (AC) measures the difficulty in executing an exploit. A high AC means that specific conditions must be met, making an attack more challenging, while a low AC means the vulnerability can be exploited with minimal effort.

Privileges Required (PR) determine the level of system access necessary for an attack. Vulnerabilities requiring no privileges are more accessible to attackers, whereas high privilege requirements limit exploitation to authorized users with elevated access.

CVSS Score Breakdown Chart

Above is the CVSS Sub-score Breakdown for CVE-2026-35172, illustrating how Base, Impact, and Exploitability factors combine to form the overall severity rating. A higher sub-score typically indicates a more severe or easier-to-exploit vulnerability.

CIA Impact Analysis

Below is the Impact Analysis for CVE-2026-35172, showing how Confidentiality, Integrity, and Availability might be affected if the vulnerability is exploited. Higher values usually signal greater potential damage.

Confidentiality: High
Exploiting CVE-2026-35172 can result in unauthorized access to sensitive data, severely compromising data privacy.
Integrity: None
CVE-2026-35172 poses no threat to data integrity.
Availability: None
CVE-2026-35172 does not impact system availability.

CVE-2026-35172 References

External References

CWE Common Weakness Enumeration

CWE-524

CAPEC Common Attack Pattern Enumeration and Classification

Lifting Sensitive Data Embedded in Cache CAPEC-204 An adversary examines a target application's cache, or a browser cache, for sensitive information. Many applications that communicate with remote entities or which perform intensive calculations utilize caches to improve efficiency. However, if the application computes or receives sensitive information and the cache is not appropriately protected, an attacker can browse the cache and retrieve this information. This can result in the disclosure of sensitive information.

Vulnerable Configurations

cpe:2.3:a:distribution:distribution:2.0.0:-:*:*:*:*:*:*
cpe:2.3:a:distribution:distribution:2.0.0:-:*:*:*:*:*:*
cpe:2.3:a:distribution:distribution:2.0.0:rc0:*:*:*:*:*:*
cpe:2.3:a:distribution:distribution:2.0.0:rc0:*:*:*:*:*:*
cpe:2.3:a:distribution:distribution:2.0.0:rc1:*:*:*:*:*:*
cpe:2.3:a:distribution:distribution:2.0.0:rc1:*:*:*:*:*:*
cpe:2.3:a:distribution:distribution:2.0.0:rc2:*:*:*:*:*:*
cpe:2.3:a:distribution:distribution:2.0.0:rc2:*:*:*:*:*:*
cpe:2.3:a:distribution:distribution:2.0.0:rc3:*:*:*:*:*:*
cpe:2.3:a:distribution:distribution:2.0.0:rc3:*:*:*:*:*:*
cpe:2.3:a:distribution:distribution:2.0.0:rc4:*:*:*:*:*:*
cpe:2.3:a:distribution:distribution:2.0.0:rc4:*:*:*:*:*:*
cpe:2.3:a:distribution:distribution:2.0.0:alpha0:*:*:*:*:*:*
cpe:2.3:a:distribution:distribution:2.0.0:alpha0:*:*:*:*:*:*
cpe:2.3:a:distribution:distribution:2.0.0:alpha1:*:*:*:*:*:*
cpe:2.3:a:distribution:distribution:2.0.0:alpha1:*:*:*:*:*:*
cpe:2.3:a:distribution:distribution:2.0.0:alpha2:*:*:*:*:*:*
cpe:2.3:a:distribution:distribution:2.0.0:alpha2:*:*:*:*:*:*
cpe:2.3:a:distribution:distribution:2.0.0:alpha3:*:*:*:*:*:*
cpe:2.3:a:distribution:distribution:2.0.0:alpha3:*:*:*:*:*:*
cpe:2.3:a:distribution:distribution:2.0.1:*:*:*:*:*:*:*
cpe:2.3:a:distribution:distribution:2.0.1:*:*:*:*:*:*:*
cpe:2.3:a:distribution:distribution:2.1.0:-:*:*:*:*:*:*
cpe:2.3:a:distribution:distribution:2.1.0:-:*:*:*:*:*:*
cpe:2.3:a:distribution:distribution:2.1.0:rc0:*:*:*:*:*:*
cpe:2.3:a:distribution:distribution:2.1.0:rc0:*:*:*:*:*:*
cpe:2.3:a:distribution:distribution:2.1.1:*:*:*:*:*:*:*
cpe:2.3:a:distribution:distribution:2.1.1:*:*:*:*:*:*:*
cpe:2.3:a:distribution:distribution:2.2.0:*:*:*:*:*:*:*
cpe:2.3:a:distribution:distribution:2.2.0:*:*:*:*:*:*:*
cpe:2.3:a:distribution:distribution:2.2.1:*:*:*:*:*:*:*
cpe:2.3:a:distribution:distribution:2.2.1:*:*:*:*:*:*:*
cpe:2.3:a:distribution:distribution:2.3.0:-:*:*:*:*:*:*
cpe:2.3:a:distribution:distribution:2.3.0:-:*:*:*:*:*:*
cpe:2.3:a:distribution:distribution:2.3.0:rc0:*:*:*:*:*:*
cpe:2.3:a:distribution:distribution:2.3.0:rc0:*:*:*:*:*:*
cpe:2.3:a:distribution:distribution:2.3.0:rc1:*:*:*:*:*:*
cpe:2.3:a:distribution:distribution:2.3.0:rc1:*:*:*:*:*:*
cpe:2.3:a:distribution:distribution:2.3.0:rc2:*:*:*:*:*:*
cpe:2.3:a:distribution:distribution:2.3.0:rc2:*:*:*:*:*:*
cpe:2.3:a:distribution:distribution:2.3.0:alpha:*:*:*:*:*:*
cpe:2.3:a:distribution:distribution:2.3.0:alpha:*:*:*:*:*:*
cpe:2.3:a:distribution:distribution:2.3.1:-:*:*:*:*:*:*
cpe:2.3:a:distribution:distribution:2.3.1:-:*:*:*:*:*:*
cpe:2.3:a:distribution:distribution:2.3.1:rc0:*:*:*:*:*:*
cpe:2.3:a:distribution:distribution:2.3.1:rc0:*:*:*:*:*:*
cpe:2.3:a:distribution:distribution:2.4.0:-:*:*:*:*:*:*
cpe:2.3:a:distribution:distribution:2.4.0:-:*:*:*:*:*:*
cpe:2.3:a:distribution:distribution:2.4.0:rc0:*:*:*:*:*:*
cpe:2.3:a:distribution:distribution:2.4.0:rc0:*:*:*:*:*:*
cpe:2.3:a:distribution:distribution:2.4.0:rc1:*:*:*:*:*:*
cpe:2.3:a:distribution:distribution:2.4.0:rc1:*:*:*:*:*:*
cpe:2.3:a:distribution:distribution:2.4.1:-:*:*:*:*:*:*
cpe:2.3:a:distribution:distribution:2.4.1:-:*:*:*:*:*:*
cpe:2.3:a:distribution:distribution:2.4.1:rc0:*:*:*:*:*:*
cpe:2.3:a:distribution:distribution:2.4.1:rc0:*:*:*:*:*:*
cpe:2.3:a:distribution:distribution:2.4.1:rc1:*:*:*:*:*:*
cpe:2.3:a:distribution:distribution:2.4.1:rc1:*:*:*:*:*:*
cpe:2.3:a:distribution:distribution:2.4.1:rc2:*:*:*:*:*:*
cpe:2.3:a:distribution:distribution:2.4.1:rc2:*:*:*:*:*:*
cpe:2.3:a:distribution:distribution:2.5.0:-:*:*:*:*:*:*
cpe:2.3:a:distribution:distribution:2.5.0:-:*:*:*:*:*:*
cpe:2.3:a:distribution:distribution:2.5.0:rc1:*:*:*:*:*:*
cpe:2.3:a:distribution:distribution:2.5.0:rc1:*:*:*:*:*:*
cpe:2.3:a:distribution:distribution:2.5.0:rc2:*:*:*:*:*:*
cpe:2.3:a:distribution:distribution:2.5.0:rc2:*:*:*:*:*:*
cpe:2.3:a:distribution:distribution:2.5.1:-:*:*:*:*:*:*
cpe:2.3:a:distribution:distribution:2.5.1:-:*:*:*:*:*:*
cpe:2.3:a:distribution:distribution:2.5.1:rc1:*:*:*:*:*:*
cpe:2.3:a:distribution:distribution:2.5.1:rc1:*:*:*:*:*:*
cpe:2.3:a:distribution:distribution:2.5.2:*:*:*:*:*:*:*
cpe:2.3:a:distribution:distribution:2.5.2:*:*:*:*:*:*:*
cpe:2.3:a:distribution:distribution:2.6.0:-:*:*:*:*:*:*
cpe:2.3:a:distribution:distribution:2.6.0:-:*:*:*:*:*:*
cpe:2.3:a:distribution:distribution:2.6.0:rc1:*:*:*:*:*:*
cpe:2.3:a:distribution:distribution:2.6.0:rc1:*:*:*:*:*:*
cpe:2.3:a:distribution:distribution:2.6.0:rc2:*:*:*:*:*:*
cpe:2.3:a:distribution:distribution:2.6.0:rc2:*:*:*:*:*:*
cpe:2.3:a:distribution:distribution:2.6.1:-:*:*:*:*:*:*
cpe:2.3:a:distribution:distribution:2.6.1:-:*:*:*:*:*:*
cpe:2.3:a:distribution:distribution:2.6.1:rc1:*:*:*:*:*:*
cpe:2.3:a:distribution:distribution:2.6.1:rc1:*:*:*:*:*:*
cpe:2.3:a:distribution:distribution:2.6.1:rc2:*:*:*:*:*:*
cpe:2.3:a:distribution:distribution:2.6.1:rc2:*:*:*:*:*:*
cpe:2.3:a:distribution:distribution:2.6.2:*:*:*:*:*:*:*
cpe:2.3:a:distribution:distribution:2.6.2:*:*:*:*:*:*:*
cpe:2.3:a:distribution:distribution:2.7.0:-:*:*:*:*:*:*
cpe:2.3:a:distribution:distribution:2.7.0:-:*:*:*:*:*:*
cpe:2.3:a:distribution:distribution:2.7.0:rc0:*:*:*:*:*:*
cpe:2.3:a:distribution:distribution:2.7.0:rc0:*:*:*:*:*:*
cpe:2.3:a:distribution:distribution:2.7.1:*:*:*:*:*:*:*
cpe:2.3:a:distribution:distribution:2.7.1:*:*:*:*:*:*:*
cpe:2.3:a:distribution:distribution:2.8.0:-:*:*:*:*:*:*
cpe:2.3:a:distribution:distribution:2.8.0:-:*:*:*:*:*:*
cpe:2.3:a:distribution:distribution:2.8.0:beta1:*:*:*:*:*:*
cpe:2.3:a:distribution:distribution:2.8.0:beta1:*:*:*:*:*:*
cpe:2.3:a:distribution:distribution:2.8.1:*:*:*:*:*:*:*
cpe:2.3:a:distribution:distribution:2.8.1:*:*:*:*:*:*:*
cpe:2.3:a:distribution:distribution:2.8.2:-:*:*:*:*:*:*
cpe:2.3:a:distribution:distribution:2.8.2:-:*:*:*:*:*:*
cpe:2.3:a:distribution:distribution:2.8.2:beta1:*:*:*:*:*:*
cpe:2.3:a:distribution:distribution:2.8.2:beta1:*:*:*:*:*:*
cpe:2.3:a:distribution:distribution:2.8.2:beta2:*:*:*:*:*:*
cpe:2.3:a:distribution:distribution:2.8.2:beta2:*:*:*:*:*:*
cpe:2.3:a:distribution:distribution:2.8.3:*:*:*:*:*:*:*
cpe:2.3:a:distribution:distribution:2.8.3:*:*:*:*:*:*:*
cpe:2.3:a:distribution:distribution:3.0.0:-:*:*:*:*:*:*
cpe:2.3:a:distribution:distribution:3.0.0:-:*:*:*:*:*:*
cpe:2.3:a:distribution:distribution:3.0.0:rc1:*:*:*:*:*:*
cpe:2.3:a:distribution:distribution:3.0.0:rc1:*:*:*:*:*:*
cpe:2.3:a:distribution:distribution:3.0.0:rc2:*:*:*:*:*:*
cpe:2.3:a:distribution:distribution:3.0.0:rc2:*:*:*:*:*:*
cpe:2.3:a:distribution:distribution:3.0.0:rc3:*:*:*:*:*:*
cpe:2.3:a:distribution:distribution:3.0.0:rc3:*:*:*:*:*:*
cpe:2.3:a:distribution:distribution:3.0.0:rc4:*:*:*:*:*:*
cpe:2.3:a:distribution:distribution:3.0.0:rc4:*:*:*:*:*:*
cpe:2.3:a:distribution:distribution:3.0.0:beta1:*:*:*:*:*:*
cpe:2.3:a:distribution:distribution:3.0.0:beta1:*:*:*:*:*:*
cpe:2.3:a:distribution:distribution:3.0.0:alpha1:*:*:*:*:*:*
cpe:2.3:a:distribution:distribution:3.0.0:alpha1:*:*:*:*:*:*

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