02 Records
FEED: ACQUIRING
01 RecordSTATE: PUBLISHED
02 Description
CNA: GitHub_MBackstage has a Possible Symlink Path Traversal in Scaffolder Actions
03 Exploitation and scoring
SRC: CISA, FIRST, NVD, RED HAT- 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 ImpactpartialSuccessful exploitation gives limited 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
- 0.49% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Ranks above 40.1% of scored records. A rank, not a probability.
- NVD base score
- 7.1 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:L
- NVD analysis status
- Deferred. NVD last modified this record on 2026-07-15.
- Red Hat severity
- Important. Red Hat's rating for its own products, not a CVSS rating.
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.
SCHEMA: 5.2
- Published
- 2026-01-21 22:36Z7 MO AGO
- Last updated
- 2026-07-15 01:17Z1 MO AGO
- Reserved
- 2026-01-20
- Assigning CNA
- GitHub_M
- Record state
- PUBLISHED
- Severity
- High (CVSS 7.1)
- CNA CVSS vector
- CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:L
- Weaknesses
- CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')Base
- CWE-59Improper Link Resolution Before File Access ('Link Following')Base
- Data version
- 5.2
- Document digest
- d541e8c78a6879a8a2f98820a482a201ec4ff498e47b154efb566513de600f60
05 Affected products
PAIRS: 1VendorProductVersionsPlatforms
backstagebackstage@backstage/backend-defaults < 0.12.2, @backstage/backend-defaults >= 0.13.0, < 0.13.2, @backstage/backend-defaults >= 0.14.0, < 0.14.1, @backstage/plugin-scaffolder-backend < 2.2.2, @backstage/plugin-scaffolder-backend >= 3.0.0, < 3.0.2, @backstage/plugin-scaffolder-backend >= 3.1.0, < 3.1.1, @backstage/plugin-scaffolder-node < 0.11.2, @backstage/plugin-scaffolder-node >= 0.12.0, < 0.12.3—