CVE-2026-28377 | Grafana Tempo 2.10.3 /status/config missing encryption

VDB-353770 · CVE-2026-28377 · GCVE-0-2026-28377 GRAFANA TEMPO 2.10.3 /STATUS/CONFIG MISSING ENCRYPTION HISTORYDIFFRELATEJSONXMLCTI CVSS Meta Temp Score Current Exploit Price (≈) CTI Interest Score 6.4 $0-$5k 2.40+ Summaryinfo A vulnerability was found in Grafana Tempo 2.10.3 and classified as problematic. Affected is an unknown function of the file /status/config. Executing a manipulation can lead to missing encryption. This vulnerability is registered as CVE-2026-28377. It is possible to launch the attack remotely. No exploit is available. Detailsinfo A vulnerability was found in Grafana Tempo 2.10.3. It has been declared as problematic. This vulnerability affects an unknown code of the file /status/config. The manipulation with an unknown input leads to a missing encryption vulnerability. The CWE definition for the vulnerability is CWE-311. The product does not encrypt sensitive or critical information before storage or transmission. As an impact it is known to affect confidentiality. CVE summarizes: A vulnerability in Grafana Tempo exposes the S3 SSE-C encryption key in plaintext through the /status/config endpoint, potentially allowing unauthorized users to obtain the key used to encrypt trace data stored in S3. Thanks to william_goodfellow for reporting this vulnerability. The advisory is available at grafana.com. This vulnerability was named CVE-2026-28377 since 02/27/2026. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Technical details are known, but there is no available exploit. This vulnerability is assigned to T1600 by the MITRE ATT&CK project. There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product. Productinfo Vendor Grafana Name Tempo Version 2.10.3 License open-source CPE 2.3info 🔒 CPE 2.2info 🔒 CVSSv4info VulDB Vector: 🔒 VulDB Reliability: 🔍 CVSSv3info VulDB Meta Base Score: 6.4 VulDB Meta Temp Score: 6.4 VulDB Base Score: 5.3 VulDB Temp Score: 5.3 VulDB Vector: 🔒 VulDB Reliability: 🔍 CNA Base Score: 7.5 CNA Vector (GRAFANA): 🔒 CVSSv2info Vector Complexity Authentication Confidentiality Integrity Availability Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock VulDB Base Score: 🔒 VulDB Temp Score: 🔒 VulDB Reliability: 🔍 Exploitinginfo Class: Missing encryption CWE: CWE-311 / CWE-310 CAPEC: 🔒 ATT&CK: 🔒 Physical: No Local: No Remote: Yes Availability: 🔒 Status: Not defined Price Prediction: 🔍 Current Price Estimation: 🔒 0-Day Unlock Unlock Unlock Unlock Today Unlock Unlock Unlock Unlock Threat Intelligenceinfo Interest: 🔍 Active Actors: 🔍 Active APT Groups: 🔍 Countermeasuresinfo Recommended: no mitigation known Status: 🔍 0-Day Time: 🔒 Timelineinfo 02/27/2026 CVE reserved 03/26/2026 +27 days Advisory disclosed 03/26/2026 +0 days VulDB entry created 03/26/2026 +0 days VulDB entry last update Sourcesinfo Advisory: grafana.com Status: Confirmed CVE: CVE-2026-28377 (🔒) GCVE (CVE): GCVE-0-2026-28377 GCVE (VulDB): GCVE-100-353770 Entryinfo Created: 03/26/2026 23:17 Changes: 03/26/2026 23:17 (62) Complete: 🔍 Cache ID: 99:BD0:101 Discussion No comments yet. Languages: en. Please log in to comment. ◂ PreviousOverviewNext ▸