synced JUST NOW
01 Record

CVE-2026-63443

Coder: Workspace agent API insecure redirect handling allowed cross-agent file read and write

HighPUBLISHEDCNA: GitHub_M
CNA base score8.3 CVSS v3.xCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L
View raw JSON

02 Description

Coder: Workspace agent API insecure redirect handling allowed cross-agent file read and write

03 Exploitation and scoring

Exploitation
Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
SSVC decision
  • ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
  • AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
  • Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.
CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.
EPSS probability
0.76% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 55.0% of scored records. A rank, not a probability.
NVD base score
8.3 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L
NVD analysis status
Awaiting Analysis. NVD last modified this record on 2026-09-30.
Red Hat severity
No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2026-09-15 16:44Z1 MO AGO
Last updated
2026-09-15 17:31Z1 MO AGO
Reserved
2026-07-16
Assigning CNA
GitHub_M
Record state
PUBLISHED
Severity
High (CVSS 8.3)
CNA CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L
Weaknesses
  • CWE-863Incorrect AuthorizationClass
  • CWE-918Server-Side Request Forgery (SSRF)Base
Data version
5.2
Document digest
53fd659a8c58e7d639d38c11b916f7a19f66cf531f2a71d7c98423c2285cb4c8

05 Affected products

VendorProductVersionsPlatforms
codercoder>= 2.27.0, < 2.29.19, >= 2.30.0, < 2.32.9, >= 2.33.0, < 2.33.10, >= 2.34.0, < 2.34.4—

06 References