CVE-2025-29157: An issue in petstore v.1.0.7 allows a remote attacker to execute arbitrary code via accessing a non-existent e

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MEDIUM 6.5REMOTEDOWNGRADE

CVE-2025-29157 is a medium-severity flaw (CVSS 6.5) affecting swagger petstore. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

An issue in petstore v.1.0.7 allows a remote attacker to execute arbitrary code via accessing a non-existent endpoint/cart, the server returns a 404-error page exposing sensitive information including the Servlet name (default) and server version

Why this priority

Public exploit reference
Remotely exploitable, no login, no user action

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	6.5 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.5% (top 55%)
CISA exploited list	No
Weakness	CWE-77
Published	2025-09-25
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: smartbear

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2025-09-25 19:15 UTCPublished CVE record published
2026-06-17 09:05 UTCUpdated Record last modified

smartbear swagger petstore DOWNGRADE

Affected: 1.0.7

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.0.7

1. Check installed version

apt-cache policy swagger-petstore || rpm -q swagger-petstore || swagger-petstore --version

2. No fixed release: DOWNGRADE to a release before 1.0.7 (Debian / Ubuntu)

apt-cache madison swagger-petstore sudo apt install swagger-petstore=<VERSION_BEFORE_1.0.7> sudo apt-mark hold swagger-petstore

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list swagger-petstore sudo dnf downgrade swagger-petstore-<VERSION_BEFORE_1.0.7> sudo dnf versionlock add swagger-petstore

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2025-29157?

swagger petstore: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2025-29157 being exploited?

CVE-2025-29157 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2025-29157 affect?

CVE-2025-29157 affects swagger petstore. Severity is medium (CVSS 6.5). An issue in petstore v.1.0.7 allows a remote attacker to execute arbitrary code via accessing a non-existent endpoint/cart, the server returns a 404-error page exposing sensitive information including the Servlet name (default) and server v

How urgent is CVE-2025-29157?

Priority 44/100. Public exploit reference; Remotely exploitable, no login, no user action

Related CVEs

CVE-2025-29156 MEDIUM 6.1 DOWNGRADE Cross Site Scripting vulnerability in petstore v.1.0.7 allows a remote attacker to execute arbitrary code via
CVE-2025-29155 MEDIUM 6.5 DOWNGRADE An issue in petstore v.1.0.7 allows a remote attacker to execute arbitrary code via the DELETE endpoint

References

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