CVE-2024-58134
Mojolicious versions from 0.999922 for Perl uses a hard coded string, or the application's class name, as an HMAC session cookie secret by default
- Published
- Updated
- Reserved
- Assigned by
- CPANSec
Description
Mojolicious versions from 0.999922 for Perl uses a hard coded string, or the application's class name, as an HMAC session cookie secret by default. These predictable default secrets can be exploited by an attacker to forge session cookies. An attacker who knows or guesses the secret could compute valid HMAC signatures for the session cookie, allowing them to tamper with or hijack another user’s session.
Public exploit
A reference of the record is tagged as an exploit or proof of concept: anyone can try it against an unpatched system.
Timeline
ID reserved
By CPANSec
- 26 days later
· 26 days later
Published
- 6 months later
· 6 months later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| CISA-ADPADP (enrichment) | 3.1 | High8.1 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N |
| NVDNVD · Modified | 3.1 | High8.1 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N |
- EPSS (exploitation in 30 days)
- 0.56% · top 53% of all CVEs (7 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 8.1.
Weakness
Affected products
- affected 0.999922 – ≤ *
What to do
Workaround: Ensure that your Mojolicious application uses a unique secret of at least 128 bit of cryptographically secure random data. For example, to generate a 256 bit secret, one could use the output generated by the "openssl rand -base64 32" command.
References (11)
- https://github.com/mojolicious/mojo/pull/1791 (opens in a new tab)issue-tracking
- https://github.com/mojolicious/mojo/pull/2200 (opens in a new tab)issue-tracking
- https://www.synacktiv.com/publications/baking-mojolicious-cookies (opens in a new tab)technical-description
- https://medium.com/securing/baking-mojolicious-cookies-revisited-a-case-study-of-solving-security-problems-through-security-by-13da7c225802 (opens in a new tab)technical-description
- https://metacpan.org/release/SRI/Mojolicious-9.39/source/lib/Mojolicious.pm#L51 (opens in a new tab)related
- https://github.com/hashcat/hashcat/pull/4090 (opens in a new tab)exploit
- https://lists.debian.org/debian-perl/2025/05/msg00016.html (opens in a new tab)mailing-list
- https://lists.debian.org/debian-perl/2025/05/msg00017.html (opens in a new tab)mailing-list
- https://lists.debian.org/debian-perl/2025/05/msg00018.html (opens in a new tab)mailing-list
- https://github.com/mojolicious/mojo/pull/2252 (opens in a new tab)issue-tracking
- https://docs.mojolicious.org/Mojolicious/Guides/FAQ#What-does-Your-secret-passphrase-needs-to-be-changed-mean (opens in a new tab)technical-description
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2024-58134)Record last updated .