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CVE-2011-4596· NVD / CVE Program· CNA redhat

Multiple directory traversal vulnerabilities in OpenStack Nova before 2011.3.1, when the EC2 API and the S3/RegisterImage image-registration

Multiple directory traversal vulnerabilities in OpenStack Nova before 2011.3.1, when the EC2 API and the S3/RegisterImage image-registration method are enabled, allow remote authenticated users to overwrite arbitrary files via a crafted (1) tarball or (2) manifest.

MediumCVSS 6.0 · v2.0—No exploit Fix available
Published
Dec 23, 2011
Updated
Jun 16, 2026
EPSS
1.8% · 77th percentile
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Report tools

JSON

Action score

25

Monitor

Low priority for now.

CVSS
24 / 40 · 6.0 / 10
CISA KEV
0 / 30 · Not listed
EPSS
1 / 30 · 1.8%

Affected systems

VendorProduct
openstacknova

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • openstack nova2011.3 and later · before 2011.3.1

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
Debian:12novabefore 2012.1~e1-42012.1~e1-4
PyPInovabefore 12.0.0a012.0.0a0

Same product

openstack: all records

Other highest-scoring records for the same primary product.

  • CVE-2017-7214An issue was discovered in exception_wrapper.py in OpenStack Nova 13.x through 13.1.3, 14.x through 14.0.4, and 15.x through 15.0.1.
    40Plan
  • CVE-2017-17051An issue was discovered in the default FilterScheduler in OpenStack Nova 16.0.3.
    35Monitor
  • CVE-2026-46448In OpenStack Nova before 33.0.2, the server create API does not strip certain hint data.
    34Monitor
  • CVE-2020-17376An issue was discovered in Guest.migrate in virt/libvirt/guest.py in OpenStack Nova before 19.3.1, 20.x before 20.3.1, and 21.0.0.
    34Monitor
  • CVE-2011-3147qcow format could expose host filesystem information
    34Monitor
  • CVE-2026-24708An issue was discovered in OpenStack Nova before 30.2.2, 31 before 31.2.1, and 32 before 32.1.1.
    32Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
debian:nova2012.1~e1-4 · Debian:12Package registry (OSV)
PyPI:nova12.0.0a0Package registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

    If successful

    Confidentiality
    P · data can be read
    Integrity
    P · data or configuration can be modified
    Availability
    P · the service can be disrupted
    Attack complexity
    M
    Confidentiality impact
    P
    Integrity impact
    P
    Availability impact
    P

    Weakness class (CWE)

    CWE-22 · Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

    CVSS vector

    AV:N/AC:M/Au:S/C:P/I:P/A:P

    nvd-primary

    Root cause

    A user-supplied file name is joined with the allowed directory, but the result is never checked to confirm it is still inside that directory.

    The bug in code

    The whole CWE-22 class

    A representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.

    Vulnerable

    ts
    const file = path.join(ROOT, req.query.name);res.sendFile(file);

    Fixed

    ts
    const file = path.resolve(ROOT, req.query.name);if (!file.startsWith(ROOT + path.sep)) {  return res.sendStatus(400);}res.sendFile(file);

    Attack context

    MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

    ATT&CK techniques

    —

    Noroxi analysis

    No Noroxi analysis for this record yet

    We don't hand-write analysis for all 385,000+ vulnerabilities; that wouldn't be honest. For notable, high-impact vulnerabilities our team writes the mechanism, detection and remediation steps.

    We use this product, ask for help

    Change log

    1. Fix✗ → ✓

    For records you follow, these changes also arrive as notifications. →

    References

    Vendor advisories and official records. Exploit/PoC links are deliberately left out.

    All records