CVE-2026-35277: Easily exploitable vulnerability allows low privileged attacker with network access via HTTPS to compromise Oracle REST Data Services. Successful attacks of this vulnerability can result in unauthorized creation, deletion or modification access to critical data or all Oracle REST Data Services accessible data as well as unauthorized access to critical data or complete access to all Oracle REST Data Services accessible data. in Oracle Corporation Oracle REST Data Services
CVE-2026-35277 is a high-severity vulnerability in Oracle REST Data Services versions 24. 2. 0 through 26. 1. 0. It allows a low privileged attacker with network access via HTTPS to compromise the service, potentially leading to unauthorized creation, deletion, or modification of critical data. The vulnerability has a CVSS 3. 1 base score of 8. 1, indicating high impact on confidentiality and integrity. Oracle has included this vulnerability in its May 2026 Critical Security Patch Update (CSPU), which provides targeted security fixes.
AI Analysis
Technical Summary
CVE-2026-35277 affects Oracle REST Data Services (Core component) versions 24.2.0 through 26.1.0. The vulnerability permits a low privileged attacker with network access over HTTPS to compromise the service, resulting in unauthorized creation, deletion, or modification of critical data accessible through Oracle REST Data Services. The CVSS 3.1 vector (AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N) reflects network attack vector, low attack complexity, low privileges required, no user interaction, unchanged scope, and high confidentiality and integrity impacts without availability impact. Oracle has addressed this vulnerability in its May 2026 Critical Security Patch Update, which includes 35 new security patches across multiple products. The vendor strongly urges customers to apply these patches immediately to prevent exploitation. Workarounds such as blocking network protocols or removing unnecessary privileges may reduce risk temporarily but do not fix the underlying issue.
Potential Impact
Successful exploitation of this vulnerability allows unauthorized creation, deletion, or modification of critical data accessible via Oracle REST Data Services, compromising confidentiality and integrity of the data. This can lead to significant data breaches or data manipulation within affected Oracle REST Data Services environments. There is no reported impact on availability. No known active exploits have been reported so far.
Mitigation Recommendations
Oracle has released patches for this vulnerability as part of the May 2026 Critical Security Patch Update. Customers should apply these patches as soon as possible to remediate the vulnerability. Until patches are applied, risk can be partially mitigated by blocking network protocols required for the attack or by removing unnecessary privileges from users, though these are not permanent solutions and may disrupt application functionality. Oracle strongly recommends testing any such changes in non-production environments. Staying on supported product versions and promptly applying security patches is critical to maintaining security.
CVE-2026-35277: Easily exploitable vulnerability allows low privileged attacker with network access via HTTPS to compromise Oracle REST Data Services. Successful attacks of this vulnerability can result in unauthorized creation, deletion or modification access to critical data or all Oracle REST Data Services accessible data as well as unauthorized access to critical data or complete access to all Oracle REST Data Services accessible data. in Oracle Corporation Oracle REST Data Services
Description
CVE-2026-35277 is a high-severity vulnerability in Oracle REST Data Services versions 24. 2. 0 through 26. 1. 0. It allows a low privileged attacker with network access via HTTPS to compromise the service, potentially leading to unauthorized creation, deletion, or modification of critical data. The vulnerability has a CVSS 3. 1 base score of 8. 1, indicating high impact on confidentiality and integrity. Oracle has included this vulnerability in its May 2026 Critical Security Patch Update (CSPU), which provides targeted security fixes.
CVSS v3.1
Score 8.1high
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-35277 affects Oracle REST Data Services (Core component) versions 24.2.0 through 26.1.0. The vulnerability permits a low privileged attacker with network access over HTTPS to compromise the service, resulting in unauthorized creation, deletion, or modification of critical data accessible through Oracle REST Data Services. The CVSS 3.1 vector (AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N) reflects network attack vector, low attack complexity, low privileges required, no user interaction, unchanged scope, and high confidentiality and integrity impacts without availability impact. Oracle has addressed this vulnerability in its May 2026 Critical Security Patch Update, which includes 35 new security patches across multiple products. The vendor strongly urges customers to apply these patches immediately to prevent exploitation. Workarounds such as blocking network protocols or removing unnecessary privileges may reduce risk temporarily but do not fix the underlying issue.
Potential Impact
Successful exploitation of this vulnerability allows unauthorized creation, deletion, or modification of critical data accessible via Oracle REST Data Services, compromising confidentiality and integrity of the data. This can lead to significant data breaches or data manipulation within affected Oracle REST Data Services environments. There is no reported impact on availability. No known active exploits have been reported so far.
Mitigation Recommendations
Oracle has released patches for this vulnerability as part of the May 2026 Critical Security Patch Update. Customers should apply these patches as soon as possible to remediate the vulnerability. Until patches are applied, risk can be partially mitigated by blocking network protocols required for the attack or by removing unnecessary privileges from users, though these are not permanent solutions and may disrupt application functionality. Oracle strongly recommends testing any such changes in non-production environments. Staying on supported product versions and promptly applying security patches is critical to maintaining security.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- oracle
- Date Reserved
- 2026-04-01T20:03:40.835Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
- Vendor Advisory Urls
- [{"url":"https://www.oracle.com/security-alerts/cspumay2026.html","vendor":"Oracle"}]
Threat ID: 6a18aa29e29bf47b5027bd85
Added to database: 5/28/2026, 8:48:41 PM
Last enriched: 5/28/2026, 9:21:03 PM
Last updated: 5/29/2026, 8:18:36 AM
Views: 6
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